deciduousadj.

Brit.

/dᵻˈsɪdjʊəs/,

/dᵻˈsɪdʒʊəs/, U.S.

/dəˈsɪdʒəwəs/

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin dēciduus , -ous suffix.

Etymology: < classical Latin dēciduus tending to fall, falling, hanging down, in post-classical Latin also fleeting, transitory (from 6th cent. in British sources), designating parts of plants or animals (1615 (in the passage translated in quot. 1657 at sense 2a) or earlier), designating a membrane (1766 or earlier; < dēcidere decide v.² + -uus : see -uous suffix) + -ous suffix. Compare French décidu (1611 as †decidu , originally in sense 2a).

†1. Falling down or off. Obsolete. rare.

ΘΚΠ

the world > movement > motion in a certain direction > downward motion > falling > [adjective]

fallingeOE

tumblingc1374

falling-downc1384

cadukec1420

rueing1557

downfalling1573

cadenta1616

deciduous1656

decident1674

1656 H. More Enthusiasmus Triumphatus 45 The Lightnings without thunder are as it were the deciduous flowers of the aestivall Starres.

a. Botany and Zoology. Of parts of plants or animals (as leaves, petals, teeth, or antlers): falling off or shed at a particular time, season, or stage of growth. Often contrasted with persistent or permanent.deciduous tooth: see Compounds.

ΘΚΠ

the world > plants > part of plant > growth, movement, or curvature of parts > [adjective] > permanent or discarded

shedc1430

deciduous1657

marcescent1727

fugacious1750

permanent1776

shrivelling1776

persisting1777

persistent1785

sphacelate1785

shedding1796

sphacelated1806

caducous1808

restant1828

fugitive1830

horarious1866

the world > life > biology > physical aspects or shapes > physical arrangement or condition > [adjective] > attached or becoming united > shed

deciduous1657

deciduary1803

caducous1808

1657 R. Tomlinson tr. J. de Renou Medicinal Materials i., in Medicinal Dispensatory sig. Xx3^v Now Anethum..is sowen in Gardens, and annually revives from the deciduous seed [L. ex deciduo semine].

1690 R. Boyle Christian Virtuoso ii. ii. §i Which some anatomists therefore call deciduous parts, such as the placenta uterina, and the different membranes that involve the fœtus.

1766 T. Pennant Brit. Zool. i. p. i Upright branched horns, annually deciduous.

1785 W. Cowper Task iii. 468 Ere the beech and elm have cast their leaf Deciduous.

1875 C. Darwin Insectivorous Plants xv. 353 The deciduous..scales of the leaf buds.

1929 R. Veitch & J. H. Simmonds Pests & Diseases Queensland Fruit & Vegetables 59 All the important enemies of deciduous fruits in this State have been introduced from overseas.

2006 Manly (Austral.) Daily (Nexis) 11 Nov. 39 This is a tall native tree with smooth bark that is deciduous.

b. Botany. Of a perennial plant, esp. a tree or shrub: that sheds its leaves every year; (also of woodland, etc.) composed of or dominated by such plants. Contrasted with evergreen.

ΘΚΠ

the world > plants > by age or cycles > [adjective] > deciduous

perdifolious1657

deciduous1668

1668 Bp. J. Wilkins Ess. Real Char. ii. iv. 111 Graniferous deciduous shrubs.

1778 R. Lowth Isaiah (ed. 12) Notes 144 The oak [and] the terebinth..being deciduous; where the Prophet's design seems to me to require an ever-green.

1798 J. Atkinson Killarney 6 The cone-like spruce, the sombrous fir and pine, here with deciduous vegetation twine.

1827 H. Steuart Planter's Guide (1828) 224 These had been introduced merely as nurses to the deciduous Trees.

1848 J. M. Wilson Rural Cycl. II. 56/2 The rest [of the species of dragon's head] are hardy, herbaceous, deciduous perennials.

1910 Ann. Rep. New Jersey State Mus. 1909 826 Rocky, hilly country covered by deciduous woodland.

1930 T. W. Briscoe Orchids for Amateurs iv. 96 Pleiones are deciduous, and the leaves usually fall when the growths are matured.

2010 C. G. K. Atkins My Imaginary Illness xi. 81 The hospital's manicured lawns fell away into deciduous shrubbery and copses of immature trees.

c. Physiology and Medicine. Of or relating to decidua; = decidual adj.

ΘΚΠ

the world > life > the body > sex organs > female sex organs > [adjective] > womb > parts of

deciduous1774

decidual1806

cervical1860

parametrial1903

paracervical1922

decidualized1943

1774 J. Curry Some Thoughts Nature of Fevers App. 64 The blackness was found to be nothing more than the putrid lochia and deciduous membrane.

1829 C. Bell & J. Bell Anat. Human Body (ed. 7) III. 445 That the ovum..upon its descent gets entangled behind the deciduous membrane.

1868 R. Owen On Anat. Vertebr. III. xxxviii. 725 The normal canal of the uterus is obliterated by the accumulated deciduous substance.

1911 St. Louis Med. Rev. Nov. 346/1 The deciduous membrane of initial fetal life.

2009 Maturitas 65 Suppl. No. 1. s26/2 Elevated levels.., which can be associated with damage to the deciduous membrane, have also been proposed as an indicator of miscarriage risk.

d. Zoology. Of the wings of insects, esp. ants and termites: shed after copulation.

ΚΠ

1875 J. H. Comstock Notes on Entomol. 1 Some forms, as the workers among ants, are wingless; with others the wings are deciduous.

1935 Philippine Jrnl. Sci. 56 180 Deciduous wings are rare among the Diptera.

2010 P. J. Gullan & P. S. Cranston Insects (ed. 4) ii. 47 In termites..and ants..the winged reproductives, or alates, have large deciduous wings that are shed after the nuptial flight.

a. figurative (chiefly poetic and literary). Designating something which perishes or disappears, esp. after having served its purpose; fleeting, transitory. Also: that sheds or loses things over time.

ΘΚΠ

the world > time > duration > shortness or brevity in time > swift movement of time > [adjective]

slidinga900

scrithingOE

henwardOE

swifta1225

short livya1325

passing1340

flittingc1374

shadowy1374

temporalc1384

speedfula1400

transitory?c1400

brittlea1425

unabidingc1430

frail?c1450

indurablec1450

scrithel?c1475

caduke1483

transitorious1492

passanta1500

perishinga1500

caducea1513

fugitive?1518

caducal?1548

quick1548

delible1549

flittering1549

undurable?1555

shadowish1561

fleeting1563

vading1566

flightful1571

wanzing1571

transitive1575

slipping1581

diary1583

unlasting1585

never-lasting1588

flit1590

post-like1594

running1598

short-lived1598

short-winded1598

transient1599

unpermanent1607

flashy1609

of a day1612

passable1613

dureless1614

urgenta1616

waxena1616

decayable1617

horary1620

evanid1626

fugitable1628

short-dated1632

fugacious1635

ephemerala1639

impermanent1653

fungous1655

volatile1655

ephemerousa1660

unimmortal1667

timesome1674

while-being1674

of passage1680

journal1685

ephemeron1714

admovent1727

evanescent1728

meteorous1750

deciduous1763

preterient1786

ephemeridal1795

meteorica1802

meteor1803

ephemerean1804

ephemerid1804

evanescing1805

fleeted1810

fleet1812

unenduring1814

unremaining1817

unimmortalized1839

impersistent1849

flighty1850

uneternal1862

caducous1863

diurnal1866

horarious1866

brisk1879

evasive1881

picaresque1959

1763 Public Advertiser 2 Sept. Her [sc. Fashion's] charms deciduous but decay, To sprout again some future day.

1811 W. R. Spencer Poems Ded. E'en Fancy's rose deciduous dies.

1841 R. W. Emerson Love in Ess. 1st Ser. (London ed.) 187 They discover that all which at first drew them together..was deciduous.

1870 J. R. Lowell Among my Bks. 170 There is much that is deciduous in books, but all that gives them a title to rank as literature in the highest sense is perennial.

1927 E. A. Robinson Coll. Poems (1937) 663 He may not be so rotten as some whose names Have fallen from my deciduous memory.

1995 P. Conroy Beach Music (1996) iv. 73 I tried to remember her long, unseen limbs, to conjure her every movement in the deciduous empire of touch, every pressure of her breasts and response of her legs and heels.

†b. Waning, declining. Obsolete. rare.

ΘΚΠ

the world > time > day and night > day or daytime > [adjective] > ending

decliningc1620

waning1767

deciduous1770

1770 E. Marshall Candid State of Evid. Specific for Gout 42 Her health..was reduc'd to the most deciduous state.

1791 E. Darwin Bot. Garden: Pt. I i. 16 Yon round deciduous day, Tressed with soft beams.

Compounds

deciduous tooth n. = milk tooth n. 1.

ΘΚΠ

the world > life > the body > digestive or excretive organs > digestive organs > mouth > types or spec. teeth > [noun] > milk

calf's-teeth1599

fore-tooth1601

sucking-tooth1601

milk tooth1738

deciduous tooth1755

shedding tooth1799

temporary tooth1802

baby tooth1834

1755 New & Compl. Dict. Arts & Sci. IV. 3178/1 Tooth drawing, however wrong in many cases, yet is certainly right and necessary in others. 1. In children, for the removing their lacteal or deciduous teeth [etc.].

1851 Abstr. Papers Royal Soc. 1843–50 5 917 These observations prove that..the Wart-hogs have deciduous teeth, succeeded vertically by premolar teeth.

2000 C. Tudge Variety of Life ii. xviii. 435 Mammals conventionally grow just two sets in their lives—the ‘milk’ or deciduous teeth, and then the adult set.

Derivatives

deˈciduously adv. chiefly Botany in a deciduous manner.

ΚΠ

1815 Bot. Reg. 1 Pl. 12 It is of quick growth..with round branches of a brownish red colour, deciduously villous, pliant, and weak.

1868 R. Owen On Anat. Vertebr. III. xxxviii. 725 The deciduously developed lining substance of the womb.

1986 Brittonia 38 62 Adaxial surface slightly concave, deciduously scaly.

2010 P. Krishen in M. Dayal Celebrating Delhi 92 Bring the arjuns and jumuns to Delhi, however, and they start behaving deciduously.

This entry has been updated (OED Third Edition, June 2015; most recently modified version published online March 2022).

单词	deciduous
释义	deciduousadj. Brit. /dᵻˈsɪdjʊəs/, /dᵻˈsɪdʒʊəs/, U.S. /dəˈsɪdʒəwəs/ Origin: A borrowing from Latin, combined with an English element. Etymons: Latin dēciduus , -ous suffix. Etymology: < classical Latin dēciduus tending to fall, falling, hanging down, in post-classical Latin also fleeting, transitory (from 6th cent. in British sources), designating parts of plants or animals (1615 (in the passage translated in quot. 1657 at sense 2a) or earlier), designating a membrane (1766 or earlier; < dēcidere decide v.² + -uus : see -uous suffix) + -ous suffix. Compare French décidu (1611 as †decidu , originally in sense 2a). †1. Falling down or off. Obsolete. rare. ΘΚΠ the world > movement > motion in a certain direction > downward motion > falling > [adjective] fallingeOE tumblingc1374 falling-downc1384 cadukec1420 rueing1557 downfalling1573 cadenta1616 deciduous1656 decident1674 1656 H. More Enthusiasmus Triumphatus 45 The Lightnings without thunder are as it were the deciduous flowers of the aestivall Starres. 2. a. Botany and Zoology. Of parts of plants or animals (as leaves, petals, teeth, or antlers): falling off or shed at a particular time, season, or stage of growth. Often contrasted with persistent or permanent.deciduous tooth: see Compounds. ΘΚΠ the world > plants > part of plant > growth, movement, or curvature of parts > [adjective] > permanent or discarded shedc1430 deciduous1657 marcescent1727 fugacious1750 permanent1776 shrivelling1776 persisting1777 persistent1785 sphacelate1785 shedding1796 sphacelated1806 caducous1808 restant1828 fugitive1830 horarious1866 the world > life > biology > physical aspects or shapes > physical arrangement or condition > [adjective] > attached or becoming united > shed deciduous1657 deciduary1803 caducous1808 1657 R. Tomlinson tr. J. de Renou Medicinal Materials i., in Medicinal Dispensatory sig. Xx3^v Now Anethum..is sowen in Gardens, and annually revives from the deciduous seed [L. ex deciduo semine]. 1690 R. Boyle Christian Virtuoso ii. ii. §i Which some anatomists therefore call deciduous parts, such as the placenta uterina, and the different membranes that involve the fœtus. 1766 T. Pennant Brit. Zool. i. p. i Upright branched horns, annually deciduous. 1785 W. Cowper Task iii. 468 Ere the beech and elm have cast their leaf Deciduous. 1875 C. Darwin Insectivorous Plants xv. 353 The deciduous..scales of the leaf buds. 1929 R. Veitch & J. H. Simmonds Pests & Diseases Queensland Fruit & Vegetables 59 All the important enemies of deciduous fruits in this State have been introduced from overseas. 2006 Manly (Austral.) Daily (Nexis) 11 Nov. 39 This is a tall native tree with smooth bark that is deciduous. b. Botany. Of a perennial plant, esp. a tree or shrub: that sheds its leaves every year; (also of woodland, etc.) composed of or dominated by such plants. Contrasted with evergreen. ΘΚΠ the world > plants > by age or cycles > [adjective] > deciduous perdifolious1657 deciduous1668 1668 Bp. J. Wilkins Ess. Real Char. ii. iv. 111 Graniferous deciduous shrubs. 1778 R. Lowth Isaiah (ed. 12) Notes 144 The oak [and] the terebinth..being deciduous; where the Prophet's design seems to me to require an ever-green. 1798 J. Atkinson Killarney 6 The cone-like spruce, the sombrous fir and pine, here with deciduous vegetation twine. 1827 H. Steuart Planter's Guide (1828) 224 These had been introduced merely as nurses to the deciduous Trees. 1848 J. M. Wilson Rural Cycl. II. 56/2 The rest [of the species of dragon's head] are hardy, herbaceous, deciduous perennials. 1910 Ann. Rep. New Jersey State Mus. 1909 826 Rocky, hilly country covered by deciduous woodland. 1930 T. W. Briscoe Orchids for Amateurs iv. 96 Pleiones are deciduous, and the leaves usually fall when the growths are matured. 2010 C. G. K. Atkins My Imaginary Illness xi. 81 The hospital's manicured lawns fell away into deciduous shrubbery and copses of immature trees. c. Physiology and Medicine. Of or relating to decidua; = decidual adj. ΘΚΠ the world > life > the body > sex organs > female sex organs > [adjective] > womb > parts of deciduous1774 decidual1806 cervical1860 parametrial1903 paracervical1922 decidualized1943 1774 J. Curry Some Thoughts Nature of Fevers App. 64 The blackness was found to be nothing more than the putrid lochia and deciduous membrane. 1829 C. Bell & J. Bell Anat. Human Body (ed. 7) III. 445 That the ovum..upon its descent gets entangled behind the deciduous membrane. 1868 R. Owen On Anat. Vertebr. III. xxxviii. 725 The normal canal of the uterus is obliterated by the accumulated deciduous substance. 1911 St. Louis Med. Rev. Nov. 346/1 The deciduous membrane of initial fetal life. 2009 Maturitas 65 Suppl. No. 1. s26/2 Elevated levels.., which can be associated with damage to the deciduous membrane, have also been proposed as an indicator of miscarriage risk. d. Zoology. Of the wings of insects, esp. ants and termites: shed after copulation. ΚΠ 1875 J. H. Comstock Notes on Entomol. 1 Some forms, as the workers among ants, are wingless; with others the wings are deciduous. 1935 Philippine Jrnl. Sci. 56 180 Deciduous wings are rare among the Diptera. 2010 P. J. Gullan & P. S. Cranston Insects (ed. 4) ii. 47 In termites..and ants..the winged reproductives, or alates, have large deciduous wings that are shed after the nuptial flight. 3. a. figurative (chiefly poetic and literary). Designating something which perishes or disappears, esp. after having served its purpose; fleeting, transitory. Also: that sheds or loses things over time. ΘΚΠ the world > time > duration > shortness or brevity in time > swift movement of time > [adjective] slidinga900 scrithingOE henwardOE swifta1225 short livya1325 passing1340 flittingc1374 shadowy1374 temporalc1384 speedfula1400 transitory?c1400 brittlea1425 unabidingc1430 frail?c1450 indurablec1450 scrithel?c1475 caduke1483 transitorious1492 passanta1500 perishinga1500 caducea1513 fugitive?1518 caducal?1548 quick1548 delible1549 flittering1549 undurable?1555 shadowish1561 fleeting1563 vading1566 flightful1571 wanzing1571 transitive1575 slipping1581 diary1583 unlasting1585 never-lasting1588 flit1590 post-like1594 running1598 short-lived1598 short-winded1598 transient1599 unpermanent1607 flashy1609 of a day1612 passable1613 dureless1614 urgenta1616 waxena1616 decayable1617 horary1620 evanid1626 fugitable1628 short-dated1632 fugacious1635 ephemerala1639 impermanent1653 fungous1655 volatile1655 ephemerousa1660 unimmortal1667 timesome1674 while-being1674 of passage1680 journal1685 ephemeron1714 admovent1727 evanescent1728 meteorous1750 deciduous1763 preterient1786 ephemeridal1795 meteorica1802 meteor1803 ephemerean1804 ephemerid1804 evanescing1805 fleeted1810 fleet1812 unenduring1814 unremaining1817 unimmortalized1839 impersistent1849 flighty1850 uneternal1862 caducous1863 diurnal1866 horarious1866 brisk1879 evasive1881 picaresque1959 1763 Public Advertiser 2 Sept. Her [sc. Fashion's] charms deciduous but decay, To sprout again some future day. 1811 W. R. Spencer Poems Ded. E'en Fancy's rose deciduous dies. 1841 R. W. Emerson Love in Ess. 1st Ser. (London ed.) 187 They discover that all which at first drew them together..was deciduous. 1870 J. R. Lowell Among my Bks. 170 There is much that is deciduous in books, but all that gives them a title to rank as literature in the highest sense is perennial. 1927 E. A. Robinson Coll. Poems (1937) 663 He may not be so rotten as some whose names Have fallen from my deciduous memory. 1995 P. Conroy Beach Music (1996) iv. 73 I tried to remember her long, unseen limbs, to conjure her every movement in the deciduous empire of touch, every pressure of her breasts and response of her legs and heels. †b. Waning, declining. Obsolete. rare. ΘΚΠ the world > time > day and night > day or daytime > [adjective] > ending decliningc1620 waning1767 deciduous1770 1770 E. Marshall Candid State of Evid. Specific for Gout 42 Her health..was reduc'd to the most deciduous state. 1791 E. Darwin Bot. Garden: Pt. I i. 16 Yon round deciduous day, Tressed with soft beams. Compounds deciduous tooth n. = milk tooth n. 1. ΘΚΠ the world > life > the body > digestive or excretive organs > digestive organs > mouth > types or spec. teeth > [noun] > milk calf's-teeth1599 fore-tooth1601 sucking-tooth1601 milk tooth1738 deciduous tooth1755 shedding tooth1799 temporary tooth1802 baby tooth1834 1755 New & Compl. Dict. Arts & Sci. IV. 3178/1 Tooth drawing, however wrong in many cases, yet is certainly right and necessary in others. 1. In children, for the removing their lacteal or deciduous teeth [etc.]. 1851 Abstr. Papers Royal Soc. 1843–50 5 917 These observations prove that..the Wart-hogs have deciduous teeth, succeeded vertically by premolar teeth. 2000 C. Tudge Variety of Life ii. xviii. 435 Mammals conventionally grow just two sets in their lives—the ‘milk’ or deciduous teeth, and then the adult set. Derivatives deˈciduously adv. chiefly Botany in a deciduous manner. ΚΠ 1815 Bot. Reg. 1 Pl. 12 It is of quick growth..with round branches of a brownish red colour, deciduously villous, pliant, and weak. 1868 R. Owen On Anat. Vertebr. III. xxxviii. 725 The deciduously developed lining substance of the womb. 1986 Brittonia 38 62 Adaxial surface slightly concave, deciduously scaly. 2010 P. Krishen in M. Dayal Celebrating Delhi 92 Bring the arjuns and jumuns to Delhi, however, and they start behaving deciduously. This entry has been updated (OED Third Edition, June 2015; most recently modified version published online March 2022). < adj.1656
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