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involucre

[ in-vuh-loo-ker ]
/ ˈɪn vəˌlu kər /
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noun

Botany. a collection or rosette of bracts subtending a flower cluster, umbel, or the like.
a covering, especially a membranous one.

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Origin of involucre

1570–80; <Middle French <Latin involūcruminvolucrum

OTHER WORDS FROM involucre

in·vo·lu·cral, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use involucre in a sentence

British Dictionary definitions for involucre

involucre

involucrum (ˌɪnvəˈluːkrəm)

/ (ˈɪnvəˌluːkə) /

noun plural -cres or -cra (-krə)

a ring of bracts at the base of an inflorescence in such plants as the composites

Derived forms of involucre

involucral, adjectiveinvolucrate, adjective

Word Origin for involucre

C16 (in the sense: envelope): from New Latin involucrum, from Latin: wrapper, from involvere to wrap; see involve
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

Scientific definitions for involucre

involucre
[ ĭn′-və-lōōkər ]

A series of bracts beneath or around a flower or flower cluster. The cupule, the cuplike structure holding an oak acorn, is a modified, woody involucre.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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