Question

deciduous

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Merriam-Webster's Collegiate Dictionaryde·cid·u·ous \di-ˈsi-jə-wəs, -jü-əs\ adjective ETYMOLOGY Latin deciduus, from decidere to fall off, from de- + cadere to fall — more at chance DATE 16881. falling off or shed seasonally or at a certain stage of development in the life cycle deciduous leaves deciduous scales2. a. having deciduous parts maples, birches, and other deciduous trees b. having the dominant plants deciduous a deciduous forest3. ephemeral• de·cid·u·ous·ness nounEnglish Etymologydeciduous 1680s, 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.Oxford Advanced Learner's Dictionary-牛津双解-OALD7deciduousde·cidu·ous / di5sidVuEs; -dju- / adjective (of a tree, bush etc. 树、灌木等) that loses its leaves every year 落叶的⇨ compare evergreenWebster's Third New International Dictionary, Unabridgedde·cid·u·ous\də̇ˈsijəwəs, dēˈ-\ adjectiveEtymology: Latin deciduus, from decidere to fall off, from de down, away + -cidere (from cadere to fall) — more at de-, chance1. : falling off or shed at the end of the growing period < deciduous leaves > < deciduous fruit >after anthesis < deciduous flower petals >at certain seasons < the deciduous hair of animals > < deciduous antlers of deer >or at certain stages of development < deciduous gills > < deciduous teeth >— opposed to persistent; compare caducous, fugacious2. : having or made up of deciduous parts < a deciduous tree > < deciduous dentition >— compare evergreen3. : of passing interest or importance : ephemeral, transitory < there is much that is deciduous in books — J.R.Lowell >• de·cid·u·ous·ly adverb• de·cid·u·ous·ness noun -es

Deciduous From Fall Adjective Having De·Cid·U·Ous Latin Decidere