undulatoryadj.

Brit.

/ˈʌndjᵿlət(ə)ri/,

/ˈʌndʒᵿlət(ə)ri/,

/ˌʌndjᵿˈleɪt(ə)ri/,

/ˌʌndʒᵿˈleɪt(ə)ri/, U.S.

/ˈəndʒələˌtɔri/,

/ˈəndjələˌtɔri/

Etymology: < modern Latin type *undulātōrius : compare undulate v. and -ory suffix². So Spanish undulatorio, Portuguese ondulatorio, Italian ondulatorio, French ondulatoire.

a. Of motion: Characterized by successive rise and fall after the manner of waves.

ΘΚΠ

the world > movement > motion in specific manner > alternating or reciprocating motion > [adjective] > undulating > of movement

wave-like1685

undulatory1728

1728 E. Chambers Cycl. (at cited word) Undulation, This Undulatory Motion of the Air, is supposed the Matter or Cause of Sound.

1761 Philos. Trans. 1760 (Royal Soc.) 51 531 The motion here appeared to be very deep, and was rather undulatory than tremulous.

1832 D. Brewster Lett. Nat. Magic iv. 78 A tempest at sea is imitated, by having the sea on one slider, and the ships on other sliders, to which an undulatory movement is communicated.

1879 R. H. Elliot Written on their Foreheads I. xvi. 149 The translator..tells us that breadth across the hips..would give an undulatory motion to their walk.

b. Exhibiting, or acting with, undulating motion.

ΘΚΠ

the world > movement > motion in specific manner > alternating or reciprocating motion > [adjective] > undulating

waving1585

flexuous1626

undulary1646

rippling1670

wavy1708

undulating1715

billowing1718

undulatory1794

waved1820

undulant1830

undulous1862

1794 R. J. Sulivan View of Nature I. 169 An elastic fluid..would cause an undulatory diffusion of the luminous particles.

1813 J. Thomson Lect. Inflammation 525 This air..gives an elastic undulatory sensation to the fingers.

1882 Good Words June 382 Vast masses of white cumulus clouds..piled up as in great undulatory breaking billows.

c. undulatory theory n. (also undulatory hypothesis, †undulatory system) the theory that light consists in an undulatory movement of an elastic medium pervading space.

ΘΚΠ

the world > matter > physics > mechanics > types of motion > [noun] > wave > specific theory

undulatory theory1802

wave theory1833

the world > matter > physics > electromagnetic radiation > light > [noun] > science of > wave theory

undulatory theory1802

physical optics1831

wave theory1833

1802 Young in Philos. Trans. (Royal Soc.) 92 13 That prepossession which I before entertained for the undulatory system of light.

a1830 J. F. W. Herschel Light in Encycl. Metrop. (1845) IV. 449 General Statement of the Undulatory Theory of Light.

1834 M. Somerville On Connexion Physical Sci. xxi. 190 These intervals determine the lengths of the waves on the undulatory hypothesis.

2. = undulating adj. 2.

ΘΚΠ

the world > space > shape > curvature > series of curves > [adjective] > wavy

waving1604

undulated1623

waved1664

undulous1728

undulatory1796

wavy1839

undulating1884

the world > the earth > land > landscape > high land > rising ground or eminence > [adjective] > undulating or undulated

wavy1774

undulating1794

rolling1795

undulated1821

undulatory1845

surging1847

1796 J. Morse Amer. Universal Geogr. (new ed.) I. 220 The other moccasin snake is..of a pale grey, sky-coloured ground, with brown undulatory ringlets.

1845 C. Darwin Jrnl. (ed. 2) xiv. 299 In wooded undulatory districts.

1853 G. Johnston Terra Lindisfarnensis I. 51 An undulatory rising ground.

1884 in H. Thompson Tumours Bladder 94 The deep limit of the growth is clearly defined, convex, undulatory or lobular in character.

3. figurative. = undulating adj. 1c.

ΘΚΠ

the world > time > change > changeableness > [adjective]

slidinga900

wankleeOE

windyc1000

unsteadfastc1200

fleeting?c1225

loose?c1225

brotelc1315

unstablec1340

varyingc1340

variantc1374

motleyc1380

ungroundedc1380

muablea1393

passiblea1393

remuablea1393

changeablea1398

movablea1398

variablec1397

slidderya1400

ticklec1400

variantc1412

flitting1413

mutable?a1425

movingc1425

flaskisable1430

flickering1430

transmutablec1430

vertible1447

brittlea1450

ficklea1450

permutablec1450

unfirmc1450

uncertain1477

turnable1483

unsteadfast1483

vagrantc1522

inconstant1526

alterable?1531

stirringc1540

slippery1548

various1552

slid?1553

mutala1561

rolling1561

weathery1563

unconstant1568

interchangeable1574

fluctuant1575

stayless1575

transitive1575

voluble1575

changeling1577

queasy1579

desultory1581

huff-puff1582

unstaid1586

vagrant1586

changeful1590

floating1594

Protean1594

unstayed1594

swimming1596

anchorless1597

mobilec1600

ticklish1601

catching1603

labile1603

unrooted1604

quicksilvered1605

versatile1605

insubstantial1607

uncertain1609

brandling1611

rootless1611

squeasy1611

wind-changinga1616

insolid1618

ambulatory1625

versatilous1629

plastic1633

desultorious1637

unbottomed1641

fluid1642

fluent1648

yea-and-nay1648

versipellous1650

flexile1651

uncentred1652

variating1653

chequered1656

slideable1662

transchangeative1662

weathercock-like1663

flicketing1674

fluxa1677

lapsable1678

wanton1681

veering1684

upon the weathercock1702

contingent1703

unsettled?1726

fermentable1731

afloat1757

brickle1768

wavy1795

vagarious1798

unsettled1803

fitful1810

metamorphosical1811

undulating1815

tittupya1817

titubant1817

mutative1818

papier mâché1818

teetotum1819

vacillating1822

capricious1823

sensitive1828

quicksilvery1829

unengrafted1829

fluxionala1834

proteiform1833

liquid1835

tottlish1835

kaleidoscopic1846

versative1846

kaleidoscopical1858

tottery1861

choppy1865

variative1874

variational1879

wimbly-wambly1881

fluctuable1882

shifty1882

giveable1884

shifty1884

tippy1886

mutatory1890

upsettable1890

rocky1897

undulatory1897

streaky1898

tottly1905

tipply1906

up and down1907

inertialess1927

sometimey1946

rise-and-fall1950

switchable1961

1897 M. L. Hughes Mediterranean Fever 99 The remittent..type of pyrexia of the undulatory or malignant varieties.

This entry has not yet been fully updated (first published 1921; most recently modified version published online June 2022).

单词	undulatory
释义	undulatoryadj. Brit. /ˈʌndjᵿlət(ə)ri/, /ˈʌndʒᵿlət(ə)ri/, /ˌʌndjᵿˈleɪt(ə)ri/, /ˌʌndʒᵿˈleɪt(ə)ri/, U.S. /ˈəndʒələˌtɔri/, /ˈəndjələˌtɔri/ Etymology: < modern Latin type undulātōrius : compare undulate v. and -ory suffix². So Spanish undulatorio, Portuguese ondulatorio, Italian ondulatorio, French ondulatoire. 1. a. Of motion: Characterized by successive rise and fall after the manner of waves. ΘΚΠ the world > movement > motion in specific manner > alternating or reciprocating motion > [adjective] > undulating > of movement wave-like1685 undulatory1728 1728 E. Chambers Cycl.* (at cited word) Undulation, This Undulatory Motion of the Air, is supposed the Matter or Cause of Sound. 1761 Philos. Trans. 1760 (Royal Soc.) 51 531 The motion here appeared to be very deep, and was rather undulatory than tremulous. 1832 D. Brewster Lett. Nat. Magic iv. 78 A tempest at sea is imitated, by having the sea on one slider, and the ships on other sliders, to which an undulatory movement is communicated. 1879 R. H. Elliot Written on their Foreheads I. xvi. 149 The translator..tells us that breadth across the hips..would give an undulatory motion to their walk. b. Exhibiting, or acting with, undulating motion. ΘΚΠ the world > movement > motion in specific manner > alternating or reciprocating motion > [adjective] > undulating waving1585 flexuous1626 undulary1646 rippling1670 wavy1708 undulating1715 billowing1718 undulatory1794 waved1820 undulant1830 undulous1862 1794 R. J. Sulivan View of Nature I. 169 An elastic fluid..would cause an undulatory diffusion of the luminous particles. 1813 J. Thomson Lect. Inflammation 525 This air..gives an elastic undulatory sensation to the fingers. 1882 Good Words June 382 Vast masses of white cumulus clouds..piled up as in great undulatory breaking billows. c. undulatory theory n. (also undulatory hypothesis, †undulatory system) the theory that light consists in an undulatory movement of an elastic medium pervading space. ΘΚΠ the world > matter > physics > mechanics > types of motion > [noun] > wave > specific theory undulatory theory1802 wave theory1833 the world > matter > physics > electromagnetic radiation > light > [noun] > science of > wave theory undulatory theory1802 physical optics1831 wave theory1833 1802 Young in Philos. Trans. (Royal Soc.) 92 13 That prepossession which I before entertained for the undulatory system of light. a1830 J. F. W. Herschel Light in Encycl. Metrop. (1845) IV. 449 General Statement of the Undulatory Theory of Light. 1834 M. Somerville On Connexion Physical Sci. xxi. 190 These intervals determine the lengths of the waves on the undulatory hypothesis. 2. = undulating adj. 2. ΘΚΠ the world > space > shape > curvature > series of curves > [adjective] > wavy waving1604 undulated1623 waved1664 undulous1728 undulatory1796 wavy1839 undulating1884 the world > the earth > land > landscape > high land > rising ground or eminence > [adjective] > undulating or undulated wavy1774 undulating1794 rolling1795 undulated1821 undulatory1845 surging1847 1796 J. Morse Amer. Universal Geogr. (new ed.) I. 220 The other moccasin snake is..of a pale grey, sky-coloured ground, with brown undulatory ringlets. 1845 C. Darwin Jrnl. (ed. 2) xiv. 299 In wooded undulatory districts. 1853 G. Johnston Terra Lindisfarnensis I. 51 An undulatory rising ground. 1884 in H. Thompson Tumours Bladder 94 The deep limit of the growth is clearly defined, convex, undulatory or lobular in character. 3. figurative. = undulating adj. 1c. ΘΚΠ the world > time > change > changeableness > [adjective] slidinga900 wankleeOE windyc1000 unsteadfastc1200 fleeting?c1225 loose?c1225 brotelc1315 unstablec1340 varyingc1340 variantc1374 motleyc1380 ungroundedc1380 muablea1393 passiblea1393 remuablea1393 changeablea1398 movablea1398 variablec1397 slidderya1400 ticklec1400 variantc1412 flitting1413 mutable?a1425 movingc1425 flaskisable1430 flickering1430 transmutablec1430 vertible1447 brittlea1450 ficklea1450 permutablec1450 unfirmc1450 uncertain1477 turnable1483 unsteadfast1483 vagrantc1522 inconstant1526 alterable?1531 stirringc1540 slippery1548 various1552 slid?1553 mutala1561 rolling1561 weathery1563 unconstant1568 interchangeable1574 fluctuant1575 stayless1575 transitive1575 voluble1575 changeling1577 queasy1579 desultory1581 huff-puff1582 unstaid1586 vagrant1586 changeful1590 floating1594 Protean1594 unstayed1594 swimming1596 anchorless1597 mobilec1600 ticklish1601 catching1603 labile1603 unrooted1604 quicksilvered1605 versatile1605 insubstantial1607 uncertain1609 brandling1611 rootless1611 squeasy1611 wind-changinga1616 insolid1618 ambulatory1625 versatilous1629 plastic1633 desultorious1637 unbottomed1641 fluid1642 fluent1648 yea-and-nay1648 versipellous1650 flexile1651 uncentred1652 variating1653 chequered1656 slideable1662 transchangeative1662 weathercock-like1663 flicketing1674 fluxa1677 lapsable1678 wanton1681 veering1684 upon the weathercock1702 contingent1703 unsettled?1726 fermentable1731 afloat1757 brickle1768 wavy1795 vagarious1798 unsettled1803 fitful1810 metamorphosical1811 undulating1815 tittupya1817 titubant1817 mutative1818 papier mâché1818 teetotum1819 vacillating1822 capricious1823 sensitive1828 quicksilvery1829 unengrafted1829 fluxionala1834 proteiform1833 liquid1835 tottlish1835 kaleidoscopic1846 versative1846 kaleidoscopical1858 tottery1861 choppy1865 variative1874 variational1879 wimbly-wambly1881 fluctuable1882 shifty1882 giveable1884 shifty1884 tippy1886 mutatory1890 upsettable1890 rocky1897 undulatory1897 streaky1898 tottly1905 tipply1906 up and down1907 inertialess1927 sometimey1946 rise-and-fall1950 switchable1961 1897 M. L. Hughes Mediterranean Fever 99 The remittent..type of pyrexia of the undulatory or malignant varieties. This entry has not yet been fully updated (first published 1921; most recently modified version published online June 2022). < adj.1728
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