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caducous

[kuh-doo-kuh s, -dyoo-]
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adjective
  1. Botany. dropping off very early, as leaves.
  2. Zoology. subject to shedding.
  3. transitory; perishable.
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Origin of caducous

1675–85; < Latin cadūcus unsteady, perishable, equivalent to cad(ere) to fall + -ūcus adj. suffix; see -ous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for caducous

caducous

adjective
  1. biology (of parts of a plant or animal) shed during the life of the organism
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Word Origin

C17: from Latin cadūcus falling, from cadere to fall
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

caducous in Science

caducous

[kə-dōōkəs]
  1. Detaching or dropping off at an early stage of development. The gills of most amphibians and the sepals or stipules of certain plants are caducous.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.