deciduous - Definitions from Dictionary.com

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Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

de·cid·u·ous

Audio Help [di-sij-oo-uh

s] Pronunciation Key

–adjective

1.	shedding the leaves annually, as certain trees and shrubs.

2.	falling off or shed at a particular season, stage of growth, etc., as leaves, horns, or teeth.

3.	not permanent; transitory.

[Origin: 1650–60; < L déciduus tending to fall, falling, equiv. to décid(ere) to fall off, down (dé- de- + -cidere, comb. form of cadere to fall) + -uus deverbal adj. suffix; see -ous

]

—Related forms

de·cid·u·ous·ly, adverb

de·cid·u·ous·ness, noun

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

Encyclopædia Britannica, Inc.
deciduous

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American Heritage Dictionary - Cite This Source - Share This

de·cid·u·ous Audio Help (dĭ-sĭj'ōō-əs) Pronunciation Key
adj.

Falling off or shed at a specific season or stage of growth: deciduous antlers; deciduous leaves; deciduous teeth.
Shedding or losing foliage at the end of the growing season: deciduous trees.
Not lasting; ephemeral.

[From Latin dēciduus, from dēcidere, to fall off : dē-, de- + cadere, to fall; see kad- in Indo-European roots.]

de·cid'u·ous·ly adv., de·cid'u·ous·ness n.

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

Online Etymology Dictionary - Cite This Source - Share This
deciduous

1688, from L. deciduus "that which falls off," from decidere "to fall off," from de- "down" + cadere "to fall" (see case (1)). Originally with reference to leaves, petals, teeth, etc.; specific sense of "trees whose leaves fall off" (opposed to evergreen) is from 1778.

WordNet - Cite This Source - Share This

deciduous
adjective
1.	(of plants and shrubs) shedding foliage at the end of the growing season [ant: evergreen]
2.	(of teeth, antlers, etc.) being shed at the end of a period of growth; "deciduous teeth"

Kernerman English Multilingual Dictionary - Cite This Source - Share This
deciduous [diˈsidjuəs, (American) -dʒuəs] adjective

(of trees) having leaves that fall in autumn
Example: Oaks are deciduous trees.

Arabic:	مُتَساقِط، مُتَناثِر
Chinese (Simplified):	（在成熟期或一定季节）脱落的
Chinese (Traditional):	(在成熟期或一定季節)脫落的
Czech:	opadavý
Danish:	løvfældende
Dutch:	loof-
Estonian:	heitlehine
Finnish:	lehtensä pudottava
French:	décidu
German:	Laub-…
Greek:	φυλλοβόλος
Hungarian:	lombhullató
Icelandic:	sumargrænn
Indonesian:	rontok
Italian:	deciduo, caduco

Japanese:	落葉性の
Korean:	낙엽수의, 바꾸는
Latvian:	lapu (koks)
Lithuanian:	lapuotis
Norwegian:	løv(tre)
Polish:	zrzucający liście
Portuguese (Brazil):	decíduo
Portuguese (Portugal):	decíduo
Romanian:	foios
Russian:	листопадный
Slovak:	opadávajúci
Slovenian:	listnat
Spanish:	de hoja caduca
Swedish:	lövfällande
Turkish:	(sonbaharda) yapraklarını döken

The American Heritage Science Dictionary - Cite This Source - Share This

deciduous Audio Help (dĭ-sĭj'

-əs) Pronunciation Key

Shedding leaves at the end of a growing season and regrowing them at the beginning of the next growing season. Most deciduous plants bear flowers and have woody stems and broad rather than needlelike leaves. Maples, oaks, elms, and aspens are deciduous. Compare evergreen. See more at abscission.
Falling off or shed at a particular season or stage of growth, as antlers.

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Deciduous

De*cid"u*a\ (?; 135), n. [NL., fr. L. deciduus. See Deciduous.] (Anat.) The inner layer of the wall of the uterus, which envelops the embryo, forms a part of the placenta, and is discharged with it.

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