gibbousadj.

Brit.

/ˈɡɪbəs/, U.S.

/ˈdʒɪbəs/,

/ˈɡɪbəs/

Forms: Also 1600s gibbouse.

Etymology: < Latin gibbus hump + -ous suffix. The guttural /ɡ/ in this and the related words is contrary to the ordinary rule for the pronunciation of Latin derivatives, but there is no evidence that /dʒ/ was ever used.

a. Convex, rounded, protuberant.

ΘΚΠ

the world > space > shape > curvature > curved surface > [adjective] > convex

swellingc1000

gibbousc1400

round?1523

convex?a1560

convexed1578

bias1609

out-bowed1613

outbent1625

full1627

outbowing1657

gibbose1682

rounded1712

bulging1812

pot-bellied1814

balloony1861

bombed1872

bombous1878

c1400 Lanfranc's Cirurg. 167 In oon side he is gibbous, & in þe toþer side he is more playn.

1577 Vicary's Profitable Treat. Anat. sig. K.iv^v The forme of the lyuer is gibbous or bunchy on the backside.

1615 H. Crooke Μικροκοσμογραϕια 636 The exterior superficies of this gristle is conuex or gibbous.

a1646 J. Gregory Posthuma (1649) 307 The Globe of the Moon..is as solid and gibbous as that of this Earth and Water.

1677 R. Plot Nat. Hist. Oxford-shire 117 In Cowley-common we meet only with the gibbous, and not the flat shell of the petrified Oyster.

1737 Gaudentio di Lucca 101 All the new Philosophers allow the Earth to be Spheroidal and Gibbous towards the Equator.

1768 T. Pennant Brit. Zool. (new ed.) I. ii. 213 The gibbous substance on their head.

1849 R. I. Murchison Siluria ix. 195 That section..which has both valves gibbous.

1881 G. Busk in Jrnl. Microsc. Sc. Jan. 8 The outer border..sharp and nearly straight, and the inner as it were gibbous.

b. Botany. ‘Very convex or tumid..this term should be restricted to solid convexities’ (Lindley).

ΘΚΠ

the world > plants > part of plant > part defined by form or function > [adjective] > bag-like

gibbous1758

saccate1830

utricular1835

saccine1853

1758 Philos. Trans. 1757 (Royal Soc.) 50 66 The calyx is a gibbous permanent periantheum.

1805 J. Galpine Brit. Bot. (1806) 274 Calyx gibbous.

1845 J. Lindley School Bot. (1858) vi. 103 Corolla without a spur, gibbous at the base.

1861 A. Pratt Flowering Plants & Ferns Great Brit. V. 327 Order Pistiaceæ..(Gibbous Duck~weed). Fronds inversely egg-shaped, hemispherical beneath.

1872 D. Oliver Lessons Elem. Bot. (new ed.) ii. 136 Observe [in Common Fumitory] the irregular corolla, one of the petals being gibbous at the base.

c. Astronomy. Said of the moon or a planet when the illuminated portion exceeds a semicircle, but is less than a circle.

ΘΚΠ

the world > the universe > planet > planetary movement > [adjective] > gibbous

gibbous1690

the world > the universe > planet > primary planet > moon > phase > [adjective] > gibbous

gibbous1690

1690 W. Leybourn Cursus mathematicus f. 449 She is liable to the same variety of changes as the Moon, sometimes almost Full, at other times Gibbous.

1755 B. Martin Mag. Arts & Sci. 122 She is then said to be gibbous; and this Phase or Aspect increases till she comes to the Situation E, where she is in Opposition to the Sun.

1834 H. Taylor Philip van Artevelde 2nd Pt. v. iii The gibbous moon was in a wan decline.

1879 Cassell's Techn. Educator (new ed.) IV. 3/1 Mars likewise appears gibbous when near the quadratures of the sun.

in combination.1845 P. J. Bailey Festus (ed. 2) 214 Many moons and planets full, Crescent, or gibbous-faced.

2. Of persons and animals: Hunch-backed; having a hump. Of a part of the body: Hump-shaped. gibbous wrasse, a fish (see quot. 1769).

ΘΚΠ

the world > health and disease > ill health > deformity > deformities of specific parts > [adjective] > hump back

hoveredc897

embossedc1430

bow-backed1470

crook-backed1477

courbe-backed1480

bunch-backed1519

hunchbacked1598

buncht-back1603

crouch-backed1606

hulch1611

hulch-backed1611

hulched1611

crouchback1627

camel-backed1631

huck-backed1631

hulchy1632

boss-backed1640

gibbous1646

huckle-backeda1652

hulck-backed1656

hunched1656

crump-backeda1661

humpbacked1681

humped1713

humpback1726

humptya1825

hunchy1841

bible-backed1857

crooked-backed1866

cyphotic1889

1646 Sir T. Browne Pseudodoxia Epidemica vi. x. 329 How Oxen in some Countries began and continue gibbous or bunch back'd?

a1661 T. Fuller Worthies (1662) Cambr. 150 A Camel passeth in the Latine proverb, either for gibbous and distorted, or for one that undertaketh a thing awkely or ungeenly.

1769 T. Pennant Brit. Zool. (new ed.) III. iv. 208 Gibbous Wrasse..of a very deep and elevated form, the back being vastly arched, and very sharp or ridged.

1791 W. Cowper tr. Homer Iliad in Iliad & Odyssey I. ii. 266 His gibbous shoulders o'er his breast Contracted.

1810 G. Crabbe Borough v. 69 Is there of all your Kindred some who lack Vision direct, or have a gibbous Back?

1822 J. M. Good Study Med. I. 559 Lommius asserts, after Hippocrates, that if a person become gibbous before puberty, in consequence of asthma, he dies.

1879 W. H. Dixon Royal Windsor I. iv. 38 Shrivelled in his loins, he [William de Longchamp] had a gibbous chest [etc.].

Derivatives

ˈgibbously adv. in a gibbous manner.

ΘΚΠ

the world > space > shape > curvature > curved surface > [adverb] > convexly

convexedly1646

convexly1777

gibbously1846

1846 J. D. Dana U.S. Exploring Exped.: Zoophytes 497 Bearing above a few very stout erect stems, gibbously divided and tuberose, never angular.

1880 R. B. Watson in Jrnl. Linn. Soc. 15 108 Spire sharply but slightly convexly and a very little gibbously conical.

ˈgibbousness n. the state of being gibbous.

ΘΚΠ

the world > the universe > planet > planetary movement > [noun] > phase > gibbous

gibbousness1693

the world > the universe > planet > primary planet > moon > phase > [noun] > gibbousness

gibbousness1693

1693 R. Bentley Boyle Lect. viii. 39 Because of the distance, the convexity and gibbousness would vanish away; he would only see below him a great circular Flat, as level to his thinking as the face of the Moon.

This entry has not yet been fully updated (first published 1899; most recently modified version published online March 2022).

单词	gibbous
释义	gibbousadj. Brit. /ˈɡɪbəs/, U.S. /ˈdʒɪbəs/, /ˈɡɪbəs/ Forms: Also 1600s gibbouse. Etymology: < Latin gibbus hump + -ous suffix. The guttural /ɡ/ in this and the related words is contrary to the ordinary rule for the pronunciation of Latin derivatives, but there is no evidence that /dʒ/ was ever used. 1. a. Convex, rounded, protuberant. ΘΚΠ the world > space > shape > curvature > curved surface > [adjective] > convex swellingc1000 gibbousc1400 round?1523 convex?a1560 convexed1578 bias1609 out-bowed1613 outbent1625 full1627 outbowing1657 gibbose1682 rounded1712 bulging1812 pot-bellied1814 balloony1861 bombed1872 bombous1878 c1400 Lanfranc's Cirurg. 167 In oon side he is gibbous, & in þe toþer side he is more playn. 1577 Vicary's Profitable Treat. Anat. sig. K.iv^v The forme of the lyuer is gibbous or bunchy on the backside. 1615 H. Crooke Μικροκοσμογραϕια 636 The exterior superficies of this gristle is conuex or gibbous. a1646 J. Gregory Posthuma (1649) 307 The Globe of the Moon..is as solid and gibbous as that of this Earth and Water. 1677 R. Plot Nat. Hist. Oxford-shire 117 In Cowley-common we meet only with the gibbous, and not the flat shell of the petrified Oyster. 1737 Gaudentio di Lucca 101 All the new Philosophers allow the Earth to be Spheroidal and Gibbous towards the Equator. 1768 T. Pennant Brit. Zool. (new ed.) I. ii. 213 The gibbous substance on their head. 1849 R. I. Murchison Siluria ix. 195 That section..which has both valves gibbous. 1881 G. Busk in Jrnl. Microsc. Sc. Jan. 8 The outer border..sharp and nearly straight, and the inner as it were gibbous. b. Botany. ‘Very convex or tumid..this term should be restricted to solid convexities’ (Lindley). ΘΚΠ the world > plants > part of plant > part defined by form or function > [adjective] > bag-like gibbous1758 saccate1830 utricular1835 saccine1853 1758 Philos. Trans. 1757 (Royal Soc.) 50 66 The calyx is a gibbous permanent periantheum. 1805 J. Galpine Brit. Bot. (1806) 274 Calyx gibbous. 1845 J. Lindley School Bot. (1858) vi. 103 Corolla without a spur, gibbous at the base. 1861 A. Pratt Flowering Plants & Ferns Great Brit. V. 327 Order Pistiaceæ..(Gibbous Duck~weed). Fronds inversely egg-shaped, hemispherical beneath. 1872 D. Oliver Lessons Elem. Bot. (new ed.) ii. 136 Observe [in Common Fumitory] the irregular corolla, one of the petals being gibbous at the base. c. Astronomy. Said of the moon or a planet when the illuminated portion exceeds a semicircle, but is less than a circle. ΘΚΠ the world > the universe > planet > planetary movement > [adjective] > gibbous gibbous1690 the world > the universe > planet > primary planet > moon > phase > [adjective] > gibbous gibbous1690 1690 W. Leybourn Cursus mathematicus f. 449 She is liable to the same variety of changes as the Moon, sometimes almost Full, at other times Gibbous. 1755 B. Martin Mag. Arts & Sci. 122 She is then said to be gibbous; and this Phase or Aspect increases till she comes to the Situation E, where she is in Opposition to the Sun. 1834 H. Taylor Philip van Artevelde 2nd Pt. v. iii The gibbous moon was in a wan decline. 1879 Cassell's Techn. Educator (new ed.) IV. 3/1 Mars likewise appears gibbous when near the quadratures of the sun. in combination.1845 P. J. Bailey Festus (ed. 2) 214 Many moons and planets full, Crescent, or gibbous-faced. 2. Of persons and animals: Hunch-backed; having a hump. Of a part of the body: Hump-shaped. gibbous wrasse, a fish (see quot. 1769). ΘΚΠ the world > health and disease > ill health > deformity > deformities of specific parts > [adjective] > hump back hoveredc897 embossedc1430 bow-backed1470 crook-backed1477 courbe-backed1480 bunch-backed1519 hunchbacked1598 buncht-back1603 crouch-backed1606 hulch1611 hulch-backed1611 hulched1611 crouchback1627 camel-backed1631 huck-backed1631 hulchy1632 boss-backed1640 gibbous1646 huckle-backeda1652 hulck-backed1656 hunched1656 crump-backeda1661 humpbacked1681 humped1713 humpback1726 humptya1825 hunchy1841 bible-backed1857 crooked-backed1866 cyphotic1889 1646 Sir T. Browne Pseudodoxia Epidemica vi. x. 329 How Oxen in some Countries began and continue gibbous or bunch back'd? View more context for this quotation a1661 T. Fuller Worthies (1662) Cambr. 150 A Camel passeth in the Latine proverb, either for gibbous and distorted, or for one that undertaketh a thing awkely or ungeenly. 1769 T. Pennant Brit. Zool. (new ed.) III. iv. 208 Gibbous Wrasse..of a very deep and elevated form, the back being vastly arched, and very sharp or ridged. 1791 W. Cowper tr. Homer Iliad in Iliad & Odyssey I. ii. 266 His gibbous shoulders o'er his breast Contracted. 1810 G. Crabbe Borough v. 69 Is there of all your Kindred some who lack Vision direct, or have a gibbous Back? 1822 J. M. Good Study Med. I. 559 Lommius asserts, after Hippocrates, that if a person become gibbous before puberty, in consequence of asthma, he dies. 1879 W. H. Dixon Royal Windsor I. iv. 38 Shrivelled in his loins, he [William de Longchamp] had a gibbous chest [etc.]. Derivatives ˈgibbously adv. in a gibbous manner. ΘΚΠ the world > space > shape > curvature > curved surface > [adverb] > convexly convexedly1646 convexly1777 gibbously1846 1846 J. D. Dana U.S. Exploring Exped.: Zoophytes 497 Bearing above a few very stout erect stems, gibbously divided and tuberose, never angular. 1880 R. B. Watson in Jrnl. Linn. Soc. 15 108 Spire sharply but slightly convexly and a very little gibbously conical. ˈgibbousness n. the state of being gibbous. ΘΚΠ the world > the universe > planet > planetary movement > [noun] > phase > gibbous gibbousness1693 the world > the universe > planet > primary planet > moon > phase > [noun] > gibbousness gibbousness1693 1693 R. Bentley Boyle Lect. viii. 39 Because of the distance, the convexity and gibbousness would vanish away; he would only see below him a great circular Flat, as level to his thinking as the face of the Moon. This entry has not yet been fully updated (first published 1899; most recently modified version published online March 2022). < adj.c1400
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