immatureadj.n.

Brit.

/ˌɪməˈtjʊə/,

/ˌɪməˈtʃʊə/,

/ˌɪməˈtjɔː/,

/ˌɪməˈtʃɔː/, U.S.

/ˌɪməˈtʊ(ə)r/,

/ˌɪməˈtʃʊ(ə)r/,

/ˌɪməˈtʃər/

Origin: A borrowing from Latin. Etymon: Latin immātūrus.

Etymology: < classical Latin immātūrus unripe, not physically mature, premature, untimely < im- im- prefix² + mātūrus mature adj. Compare Middle French, French immature (a1509), Spanish inmaduro (1498), Portuguese imaturo (a1580), Italian immaturo (a1511).

A. adj.

1. Esp. of death: occurring before the usual or proper time; untimely, premature. Now somewhat rare.

ΘΚΠ

the world > time > a suitable time or opportunity > untimeliness > [adjective] > early or premature

rathe1340

soona1400

premature?1530

fore-ripeda1533

untimeousc1540

immature1548

overtimely1548

prematurate1570

oversoona1586

over-early1605

premiseda1616

prematured1692

unearthly1865

previous1869

1548 Hall's Vnion: Richard III f. xlviij^v Ye sodein and immature death of his wife.

1630 M. Godwin tr. F. Godwin Ann. Eng. i. 143 The immature end of the Duke of Richmond..for whom the King a long time after mourned.

1640 J. Howell Δενδρολογια 69 Not long after, he was transplanted into the other World by an immature Fate.

1726 G. Leoni tr. L. B. Alberti Architecture I. 7/1 The whole Frame..falls into dangerous Distempers and immature old Age.

1775 Gentleman's Mag. May 242/1 The Cardinal's father..predicted the immature deaths of his children.

1829 J. Chambers Gen. Hist. Norfolk II. 915 This effort was, however, blasted by his immature decease.

1861 H. Mayhew London Labour (new ed.) II. 412/1 Damage from exhalation and dampness..leads to the dry rot in timber, and to an immature decay of materials.

1906 Electr. Rev. 30 Nov. 881/2 The Daily Mail's immature announcement as to alteration in the company's methods of subscription.

2006 G. Dönmez-Colin Cinemas of Other ii. 172 The leader of the popular rock band Kino, whose immature death created a James Dean-like cult.

a. Characteristic of or belonging to an age or stage of life before adulthood or full development; occurring or done in immaturity.

ΚΠ

1563 J. Foxe Actes & Monuments 884/2 He [sc. King Edward VI] in this tender and immature yeares, could tell and recite all the portes, hauens & creakes.

1665 R. Boyle Disc. iv. iv, in Occas. Refl. sig. F4 The green and immature Essays of early Writers.

1713 R. Steele in Guardian 19 Mar. 2/1 The immature Marriages which are solemnized in our Days.

1798 W. Taylor in Monthly Rev. 26 491 In his immature youth he had detected within himself a something dæmonic.

1833 J. Rennie Montagu's Ornithol. Dict. (new ed.) 505 Tarrock, a name for the Gull in its immature plumage.

1894 Proc. Entomol. Soc. 14 Mar. p. vii Fertile females, that in some portions of the development of the body still retain the immature condition.

1920 S. M. Ellis G. Meredith iii. 69 This first volume of poems, which he termed the worthless immature work of a boy in his teens.

1988 A. Miller Enabler (1990) viii. 56 It is doubly hard for the present crop of young people to deal with pimples, braces, knock-knees, fat, and immature talent.

2002 G. Johnston Arctic Charr Aquaculture iv. 91 The fish must be a certain weight or length in their last year of immature growth..to trigger sexual development.

b. Of a person, animal, plant, cell, etc.: having not yet attained adulthood or a fully functional stage; not fully developed or grown.

ΘΚΠ

the world > life > biology > biological processes > development, growth, or degeneration > [adjective] > imperfectly developed or immature

ungrown1593

immature1610

unsizeable1746

aborted1754

agenesic1900

1610 J. Healey tr. St. Augustine Citie of God xv. xv. 551 Nor is it credible that their fathers liued al this while either immature [L. inpuberes], or vnmarried, or vnchilded.

1667 J. Milton Paradise Lost vii. 277 The Earth..in the Womb as yet Of Waters, Embryon immature involv'd.

1752 Chambers's Cycl. (ed. 7) Suppl. at Adult Adult plants..differ from immature ones in that they contain more oil, and less salt.

1789 E. Darwin Bot. Garden: Pt. II 5 The stigma, or head of the female, is produced amongst the upper or immature set [of stamens].

1839 C. Darwin in R. Fitzroy & C. Darwin Narr. Surv. Voy. H.M.S. Adventure & Beagle III. xii. 259 The young cells..contained quite immature polypi.

1880 A. Günther Introd. Study of Fishes 176 Immature males do not differ externally from the old female.

1931 E. G. Boulenger Fishes vii. 71 The Sprat (C. Sprattus) is still erroneously believed by many to be an immature Herring.

1968 H. O. Mackey & J. P. Mackey Handbk. Dis. Skin (ed. 9) xxvii. 301 Lymphomas consist primarily of immature and mature cells of the lymphoid-reticular system.

1984 T. Morantz in S. Krech Subarctic Fur Trade iii. 68 A woman's right to her immature children, upon the termination of her marriage, is known among patrilineal societies.

2000 C. Tudge Variety of Life ii. xi. 320 Many of them dwell full time upon other animals (often other arthropods), either when immature or as adults.

c. Having or showing an emotional or intellectual development not befitting or characteristic of a mature person; juvenile, childish; silly.

ΘΚΠ

the mind > mental capacity > lack of understanding > foolishness, folly > childish folly, childishness > [adjective]

childishc1405

indigest1423

bairnly1533

babish?1552

babished1563

babyish1646

puerilea1680

chitty1755

jejune1898

immature1902

1902 R. Herrick & L. Todd Damon Composition & Rhetoric for Schools (rev. ed.) xi. 187 To call a man ‘a child-like person’ is to call attention, not unpleasantly, to his simplicity; to call him ‘childish’ is to stigmatize him as immature or silly.

1925 V. Woolf Mrs. Dalloway 208 Her mother felt, she was extremely immature, like a child still.

1970 Black Belt Apr. 63/2 If you are so immature that you have to argue then you should not be in any form of the martial arts.

1999 A. Hadley Tough Choices 56 The social worker was a right bitch and told me I couldn't cope and that I was really immature, sitting there crying.

2004 Chicago Tribune (Midwest ed.) 14 Nov. x. 23/2 I am often criticized for writing immature ‘bathroom’ humor, and not enough about important topics.

3. Of a fruit: unripe.

ΘΚΠ

the world > plants > by age or cycles > [adjective] > ripe or ripened > unripe or over-ripe

unripec1275

semi-maturec1440

unripedc1500

untimely1535

unripened1561

overripened1594

immature1599

maum1691

under-ripe1707

overripe1769

the world > food and drink > food > fruit and vegetables > fruit or a fruit > [adjective] > not ripe

crude1555

immature1599

1599 A. M. tr. O. Gaebelkhover Bk. Physicke 5/2 Water of immature [Ger. vnzeittigen] wallenuttes.

1657 R. Tomlinson tr. J. de Renou Medicinal Materials i, in Medicinal Dispensatory sig. Ll2^v These Fruits [sc. tamarinds], when immature, are green and acid.

1692 T. Tryon Good House-wife (ed. 2) xiv. 104 Many other Fruits are gathered and eaten whilst they are immature.

1727 R. Bradley Chomel's Dictionaire Oeconomique (Dublin ed.) at Cider Cider..made of green immature Fruit.

1768 Every Man his own Brewer 172 In wines produced only from the grape the culinary fire is never used, but to the juices of immature fruits.

1820 W. Roxburgh et al. Flora Indica I. 155 The pepper of the female vine did not ripen properly, but dropped while..immature from the plant.

1886 Guide Kew Mus. Econ. Bot. No. 1. 29 The small immature fruits which drop from the trees..form the Orange berries of pharmacy.

1920 P. J. Fryer Insect Pests & Fungus Dis. Fruit & Hops vi. 22 The fruit is protected by a fairly tough outer skin, any injury to which while the fruit is in an immature stage resulting in dwarfing or distortion.

1957 E. V. Miller Chem. Plants viii. 113 Naringin is found in large quantities in the juice of immature grapefruits.

2010 Guardian 16 June 32/4 In the Radland valley immature cherries (locally called soldiers) have dropped.

4. Of an immaterial thing: not fully formed or perfected; recent, new; incomplete.

ΘΚΠ

the world > action or operation > undertaking > preparation > unpreparedness > [adjective] > unready or immature

green?a1300

rawa1398

indigest1398

unmatured?a1425

unripea1500

unseasonable1515

unbuilded1519

inchoate1534

unripened1561

uncivil1572

unmellowed1573

unmanured1577

unblown1587

ungrown1593

unpolished1594

rudimental1597

rude1600

unsalted1602

unseasoned1602

unlicked1612

embryon1613

unbakeda1616

unbloweda1616

unfledged1615

unmellow1615

sappya1627

embryous1628

unconcocteda1631

unkneaded1633

immature1635

sucking1648

vacuous1651

embryo1659

unelaborate1663

unmature1673

unformed1689

undeveloped1736

infantile1772

uncultivated1796

unelaborated1817

fetal1820

embryotic1823

embryonic1825

embryonary1833

sophomoric1837

seedling1843

rudimentary1851

unwrought1869

juvenescent1875

vealy1890

under-developed1892

1635 J. Hayward tr. G. F. Biondi Donzella Desterrada i. 76 This project..being..immature in the fertile soyle of his braine-plot.

1701 N. Rowe Ambitious Step-mother v. i As yet the Secret Is immature.

1808 J. Cottle Fall of Cambria I. vi. 87 This immature unconsummated hope, So scorn'd of every good and gallant Knight.

1851 D. Wilson Archæol. & Prehistoric Ann. Scotl. iv. vii. 644 The archæologist..hopes better things of his own age than that it should expect perfection in those immature centuries.

1911 Encycl. Britannica XIX. 74/1 The foundation of a music as yet immature and ancillary to drama.

1965 J. L. Hanson Dict. Econ. 163/2 Immature economic systems tend to have export surpluses of goods in order to pay the interest on foreign loans.

2005 Canberra (Austral.) Times (Nexis) 16 Apr. a13 Revealing how little is known for sure in this rather immature area of scientific study.

5. Ophthalmology. Of a progressive cataract: characterized by a marked but incomplete opacity, with the lens typically swollen and its superficial layers still largely transparent.

ΘΚΠ

the world > health and disease > ill health > a disease > disorders of eye > [adjective] > cataract > stage of

immature1746

mature1826

hypermature1897

1746 S. Mihles Elements Surg. 201 The true Cataract is again distinguished from its Colour and Consistence into white or grey, mature or firm, or immature and shaking.

1850 B. E. Brodhurst Of Crystalline Lens & Cataract 57 The terms mature, and immature,..are well adapted to express the stage of progress at which any particular cataract may have arrived.

1904 L. W. Fox Dis. Eye xii. 311 The special difficulties..in removing a cataract before maturity are that parts of the cortex, clear at the time of operation, will remain adherent to the capsule of the lens... Some operators, however, operate on immature cataracts, washing out the tenacious material with a syringe.

1970 A. H. Keeney Ocular Exam. ix. 143/2 Early (incipient or immature) cataracts cause changes in refraction..marked by increasing myopia at an age when refraction should either be stable or show increasing hyperopia.

2007 L. Schwab Eye Care Developing Nations (ed. 4) v. 81/1 A patient with one normally sighted eye and an immature cataract in the opposite eye with visual impairment is not a candidate.

6. Soil Science. Of a soil: not having a fully developed profile. Of a soil profile or its parts: not fully developed.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > earth or soil > kind of earth or soil > [adjective] > other types of soil

redeOE

Armeniac?a1425

rosiny1613

Chiltern1669

light land1770

acid1806

residuary1829

mottled1845

sedentary1870

residual1876

azonal1896

Bulli1904

immature1921

mature1924

intrazonal1927

podzolic1927

pedalferic1928

pedocalic1928

solonetzic1935

planosolic1949

solodic1968

cryptogamic1973

cryptobiotic1992

1921 Proc. 41st Ann. Meeting Soc. Promotion Agric. Sci. 134 Large areas of immature soils are found in the region of yellow soils, usually characterized by the red color of their third horizon.

1926 C. F. Marbut in A. G. Tansley & T. F. Chipp Aims & Methods Study of Vegetation vii. 139 In every region there are hillside soils as well as alluvial and colluvial deposits in which the texture profile will not be well developed because of the short time during which the material has been subjected to the forces of soil development. Such soils are immature or have imperfectly developed profiles.

1963 D. W. Humphries & E. E. Humphries tr. H. Termier & G. Termier Erosion & Sedimentation vi. 138 When erosion is greater than the rate of formation, the soil is immature.

2010 R. Parker Plant & Soil Sci. v. 97 Such a young, immature soil takes as little as a hundred years to form from well-weathered parent materials.

B. n. Zoology.

An animal that has not yet reached maturity; (Ornithology) a bird that is no longer a juvenile but has not yet attained the full adult plumage.

ΘΚΠ

the world > life > source or principle of life > age > youth > [noun] > a young one

youngOE

planta1393

frotha1420

immature1866

1866 Zoologist 1 243 My collection of immatures in their various stages has been visited by ‘professors’, and they could make no hand of it.

1897 Wilson Bull. 9 4 Bald Eagle, Haliæetus leucocephalus.—More common this fall than for several years—several fine adults seen and also several immatures.

1934 Auk 51 83 From the presence of this subterminal band, I concluded that the bird was an immature in first winter plumage.

1951 Proc. Alaskan Sci. Conf. 1950 Apr. 113 Arctic-breeding birds apparently acquire heavy helminth infections on the breeding grounds as nestlings and immatures.

1985 Jrnl. Arachnol. 13 89 Dispersal of the immatures from the maternal retreat commences during the summer.

2008 Herald-Times (Bloomington, Indiana) 9 Jan. a3/1 He found 41 bald eagles on Lake Monroe, including 16 adults and 25 immatures.

This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022).

单词	immature
释义	immatureadj.n. Brit. /ˌɪməˈtjʊə/, /ˌɪməˈtʃʊə/, /ˌɪməˈtjɔː/, /ˌɪməˈtʃɔː/, U.S. /ˌɪməˈtʊ(ə)r/, /ˌɪməˈtʃʊ(ə)r/, /ˌɪməˈtʃər/ Origin: A borrowing from Latin. Etymon: Latin immātūrus. Etymology: < classical Latin immātūrus unripe, not physically mature, premature, untimely < im- im- prefix² + mātūrus mature adj. Compare Middle French, French immature (a1509), Spanish inmaduro (1498), Portuguese imaturo (a1580), Italian immaturo (a1511). A. adj. 1. Esp. of death: occurring before the usual or proper time; untimely, premature. Now somewhat rare. ΘΚΠ the world > time > a suitable time or opportunity > untimeliness > [adjective] > early or premature rathe1340 soona1400 premature?1530 fore-ripeda1533 untimeousc1540 immature1548 overtimely1548 prematurate1570 oversoona1586 over-early1605 premiseda1616 prematured1692 unearthly1865 previous1869 1548 Hall's Vnion: Richard III f. xlviij^v Ye sodein and immature death of his wife. 1630 M. Godwin tr. F. Godwin Ann. Eng. i. 143 The immature end of the Duke of Richmond..for whom the King a long time after mourned. 1640 J. Howell Δενδρολογια 69 Not long after, he was transplanted into the other World by an immature Fate. 1726 G. Leoni tr. L. B. Alberti Architecture I. 7/1 The whole Frame..falls into dangerous Distempers and immature old Age. 1775 Gentleman's Mag. May 242/1 The Cardinal's father..predicted the immature deaths of his children. 1829 J. Chambers Gen. Hist. Norfolk II. 915 This effort was, however, blasted by his immature decease. 1861 H. Mayhew London Labour (new ed.) II. 412/1 Damage from exhalation and dampness..leads to the dry rot in timber, and to an immature decay of materials. 1906 Electr. Rev. 30 Nov. 881/2 The Daily Mail's immature announcement as to alteration in the company's methods of subscription. 2006 G. Dönmez-Colin Cinemas of Other ii. 172 The leader of the popular rock band Kino, whose immature death created a James Dean-like cult. 2. a. Characteristic of or belonging to an age or stage of life before adulthood or full development; occurring or done in immaturity. ΚΠ 1563 J. Foxe Actes & Monuments 884/2 He [sc. King Edward VI] in this tender and immature yeares, could tell and recite all the portes, hauens & creakes. 1665 R. Boyle Disc. iv. iv, in Occas. Refl. sig. F4 The green and immature Essays of early Writers. 1713 R. Steele in Guardian 19 Mar. 2/1 The immature Marriages which are solemnized in our Days. 1798 W. Taylor in Monthly Rev. 26 491 In his immature youth he had detected within himself a something dæmonic. 1833 J. Rennie Montagu's Ornithol. Dict. (new ed.) 505 Tarrock, a name for the Gull in its immature plumage. 1894 Proc. Entomol. Soc. 14 Mar. p. vii Fertile females, that in some portions of the development of the body still retain the immature condition. 1920 S. M. Ellis G. Meredith iii. 69 This first volume of poems, which he termed the worthless immature work of a boy in his teens. 1988 A. Miller Enabler (1990) viii. 56 It is doubly hard for the present crop of young people to deal with pimples, braces, knock-knees, fat, and immature talent. 2002 G. Johnston Arctic Charr Aquaculture iv. 91 The fish must be a certain weight or length in their last year of immature growth..to trigger sexual development. b. Of a person, animal, plant, cell, etc.: having not yet attained adulthood or a fully functional stage; not fully developed or grown. ΘΚΠ the world > life > biology > biological processes > development, growth, or degeneration > [adjective] > imperfectly developed or immature ungrown1593 immature1610 unsizeable1746 aborted1754 agenesic1900 1610 J. Healey tr. St. Augustine Citie of God xv. xv. 551 Nor is it credible that their fathers liued al this while either immature [L. inpuberes], or vnmarried, or vnchilded. 1667 J. Milton Paradise Lost vii. 277 The Earth..in the Womb as yet Of Waters, Embryon immature involv'd. View more context for this quotation 1752 Chambers's Cycl. (ed. 7) Suppl. at Adult Adult plants..differ from immature ones in that they contain more oil, and less salt. 1789 E. Darwin Bot. Garden: Pt. II 5 The stigma, or head of the female, is produced amongst the upper or immature set [of stamens]. 1839 C. Darwin in R. Fitzroy & C. Darwin Narr. Surv. Voy. H.M.S. Adventure & Beagle III. xii. 259 The young cells..contained quite immature polypi. 1880 A. Günther Introd. Study of Fishes 176 Immature males do not differ externally from the old female. 1931 E. G. Boulenger Fishes vii. 71 The Sprat (C. Sprattus) is still erroneously believed by many to be an immature Herring. 1968 H. O. Mackey & J. P. Mackey Handbk. Dis. Skin (ed. 9) xxvii. 301 Lymphomas consist primarily of immature and mature cells of the lymphoid-reticular system. 1984 T. Morantz in S. Krech Subarctic Fur Trade iii. 68 A woman's right to her immature children, upon the termination of her marriage, is known among patrilineal societies. 2000 C. Tudge Variety of Life ii. xi. 320 Many of them dwell full time upon other animals (often other arthropods), either when immature or as adults. c. Having or showing an emotional or intellectual development not befitting or characteristic of a mature person; juvenile, childish; silly. ΘΚΠ the mind > mental capacity > lack of understanding > foolishness, folly > childish folly, childishness > [adjective] childishc1405 indigest1423 bairnly1533 babish?1552 babished1563 babyish1646 puerilea1680 chitty1755 jejune1898 immature1902 1902 R. Herrick & L. Todd Damon Composition & Rhetoric for Schools (rev. ed.) xi. 187 To call a man ‘a child-like person’ is to call attention, not unpleasantly, to his simplicity; to call him ‘childish’ is to stigmatize him as immature or silly. 1925 V. Woolf Mrs. Dalloway 208 Her mother felt, she was extremely immature, like a child still. 1970 Black Belt Apr. 63/2 If you are so immature that you have to argue then you should not be in any form of the martial arts. 1999 A. Hadley Tough Choices 56 The social worker was a right bitch and told me I couldn't cope and that I was really immature, sitting there crying. 2004 Chicago Tribune (Midwest ed.) 14 Nov. x. 23/2 I am often criticized for writing immature ‘bathroom’ humor, and not enough about important topics. 3. Of a fruit: unripe. ΘΚΠ the world > plants > by age or cycles > [adjective] > ripe or ripened > unripe or over-ripe unripec1275 semi-maturec1440 unripedc1500 untimely1535 unripened1561 overripened1594 immature1599 maum1691 under-ripe1707 overripe1769 the world > food and drink > food > fruit and vegetables > fruit or a fruit > [adjective] > not ripe crude1555 immature1599 1599 A. M. tr. O. Gaebelkhover Bk. Physicke 5/2 Water of immature [Ger. vnzeittigen] wallenuttes. 1657 R. Tomlinson tr. J. de Renou Medicinal Materials i, in Medicinal Dispensatory sig. Ll2^v These Fruits [sc. tamarinds], when immature, are green and acid. 1692 T. Tryon Good House-wife (ed. 2) xiv. 104 Many other Fruits are gathered and eaten whilst they are immature. 1727 R. Bradley Chomel's Dictionaire Oeconomique (Dublin ed.) at Cider Cider..made of green immature Fruit. 1768 Every Man his own Brewer 172 In wines produced only from the grape the culinary fire is never used, but to the juices of immature fruits. 1820 W. Roxburgh et al. Flora Indica I. 155 The pepper of the female vine did not ripen properly, but dropped while..immature from the plant. 1886 Guide Kew Mus. Econ. Bot. No. 1. 29 The small immature fruits which drop from the trees..form the Orange berries of pharmacy. 1920 P. J. Fryer Insect Pests & Fungus Dis. Fruit & Hops vi. 22 The fruit is protected by a fairly tough outer skin, any injury to which while the fruit is in an immature stage resulting in dwarfing or distortion. 1957 E. V. Miller Chem. Plants viii. 113 Naringin is found in large quantities in the juice of immature grapefruits. 2010 Guardian 16 June 32/4 In the Radland valley immature cherries (locally called soldiers) have dropped. 4. Of an immaterial thing: not fully formed or perfected; recent, new; incomplete. ΘΚΠ the world > action or operation > undertaking > preparation > unpreparedness > [adjective] > unready or immature green?a1300 rawa1398 indigest1398 unmatured?a1425 unripea1500 unseasonable1515 unbuilded1519 inchoate1534 unripened1561 uncivil1572 unmellowed1573 unmanured1577 unblown1587 ungrown1593 unpolished1594 rudimental1597 rude1600 unsalted1602 unseasoned1602 unlicked1612 embryon1613 unbakeda1616 unbloweda1616 unfledged1615 unmellow1615 sappya1627 embryous1628 unconcocteda1631 unkneaded1633 immature1635 sucking1648 vacuous1651 embryo1659 unelaborate1663 unmature1673 unformed1689 undeveloped1736 infantile1772 uncultivated1796 unelaborated1817 fetal1820 embryotic1823 embryonic1825 embryonary1833 sophomoric1837 seedling1843 rudimentary1851 unwrought1869 juvenescent1875 vealy1890 under-developed1892 1635 J. Hayward tr. G. F. Biondi Donzella Desterrada i. 76 This project..being..immature in the fertile soyle of his braine-plot. 1701 N. Rowe Ambitious Step-mother v. i As yet the Secret Is immature. 1808 J. Cottle Fall of Cambria I. vi. 87 This immature unconsummated hope, So scorn'd of every good and gallant Knight. 1851 D. Wilson Archæol. & Prehistoric Ann. Scotl. iv. vii. 644 The archæologist..hopes better things of his own age than that it should expect perfection in those immature centuries. 1911 Encycl. Britannica XIX. 74/1 The foundation of a music as yet immature and ancillary to drama. 1965 J. L. Hanson Dict. Econ. 163/2 Immature economic systems tend to have export surpluses of goods in order to pay the interest on foreign loans. 2005 Canberra (Austral.) Times (Nexis) 16 Apr. a13 Revealing how little is known for sure in this rather immature area of scientific study. 5. Ophthalmology. Of a progressive cataract: characterized by a marked but incomplete opacity, with the lens typically swollen and its superficial layers still largely transparent. ΘΚΠ the world > health and disease > ill health > a disease > disorders of eye > [adjective] > cataract > stage of immature1746 mature1826 hypermature1897 1746 S. Mihles Elements Surg. 201 The true Cataract is again distinguished from its Colour and Consistence into white or grey, mature or firm, or immature and shaking. 1850 B. E. Brodhurst Of Crystalline Lens & Cataract 57 The terms mature, and immature,..are well adapted to express the stage of progress at which any particular cataract may have arrived. 1904 L. W. Fox Dis. Eye xii. 311 The special difficulties..in removing a cataract before maturity are that parts of the cortex, clear at the time of operation, will remain adherent to the capsule of the lens... Some operators, however, operate on immature cataracts, washing out the tenacious material with a syringe. 1970 A. H. Keeney Ocular Exam. ix. 143/2 Early (incipient or immature) cataracts cause changes in refraction..marked by increasing myopia at an age when refraction should either be stable or show increasing hyperopia. 2007 L. Schwab Eye Care Developing Nations (ed. 4) v. 81/1 A patient with one normally sighted eye and an immature cataract in the opposite eye with visual impairment is not a candidate. 6. Soil Science. Of a soil: not having a fully developed profile. Of a soil profile or its parts: not fully developed. ΘΚΠ the world > the earth > structure of the earth > constituent materials > earth or soil > kind of earth or soil > [adjective] > other types of soil redeOE Armeniac?a1425 rosiny1613 Chiltern1669 light land1770 acid1806 residuary1829 mottled1845 sedentary1870 residual1876 azonal1896 Bulli1904 immature1921 mature1924 intrazonal1927 podzolic1927 pedalferic1928 pedocalic1928 solonetzic1935 planosolic1949 solodic1968 cryptogamic1973 cryptobiotic1992 1921 Proc. 41st Ann. Meeting Soc. Promotion Agric. Sci. 134 Large areas of immature soils are found in the region of yellow soils, usually characterized by the red color of their third horizon. 1926 C. F. Marbut in A. G. Tansley & T. F. Chipp Aims & Methods Study of Vegetation vii. 139 In every region there are hillside soils as well as alluvial and colluvial deposits in which the texture profile will not be well developed because of the short time during which the material has been subjected to the forces of soil development. Such soils are immature or have imperfectly developed profiles. 1963 D. W. Humphries & E. E. Humphries tr. H. Termier & G. Termier Erosion & Sedimentation vi. 138 When erosion is greater than the rate of formation, the soil is immature. 2010 R. Parker Plant & Soil Sci. v. 97 Such a young, immature soil takes as little as a hundred years to form from well-weathered parent materials. B. n. Zoology. An animal that has not yet reached maturity; (Ornithology) a bird that is no longer a juvenile but has not yet attained the full adult plumage. ΘΚΠ the world > life > source or principle of life > age > youth > [noun] > a young one youngOE planta1393 frotha1420 immature1866 1866 Zoologist 1 243 My collection of immatures in their various stages has been visited by ‘professors’, and they could make no hand of it. 1897 Wilson Bull. 9 4 Bald Eagle, Haliæetus leucocephalus.—More common this fall than for several years—several fine adults seen and also several immatures. 1934 Auk 51 83 From the presence of this subterminal band, I concluded that the bird was an immature in first winter plumage. 1951 Proc. Alaskan Sci. Conf. 1950 Apr. 113 Arctic-breeding birds apparently acquire heavy helminth infections on the breeding grounds as nestlings and immatures. 1985 Jrnl. Arachnol. 13 89 Dispersal of the immatures from the maternal retreat commences during the summer. 2008 Herald-Times (Bloomington, Indiana) 9 Jan. a3/1 He found 41 bald eagles on Lake Monroe, including 16 adults and 25 immatures. This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022). < adj.n.1548
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