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caducous

[kuh-doo-kuh s, -dyoo-] /kəˈdu kəs, -ˈdyu-/
adjective
1.
Botany. dropping off very early, as leaves.
2.
Zoology. subject to shedding.
3.
transitory; perishable.
Origin of caducous
1675-1685
1675-85; < Latin cadūcus unsteady, perishable, equivalent to cad(ere) to fall + -ūcus adj. suffix; see -ous
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Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for caducous

caducous

/kəˈdjuːkəs/
adjective
1.
(biology) (of parts of a plant or animal) shed during the life of the organism
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
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caducous in Science
caducous
  (kə-d'kəs)   
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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