involucre[in′vō lo̵̅o̅′kər, -və-]
involucre definition by Webster's New World
- Anat. a membranous covering or envelope
- Bot. a ring of small leaves, or bracts, at the base of a flower, flower cluster, or fruit: involucres are found in all plants of the composite family
Origin: French ; from Classical Latin involucrum, wrapper, case, envelope ; from involvere: see involve
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- involucral adjective
involucre definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A series of bracts beneath or around a flower or flower cluster.
Origin: French, from Latin involūcrum, wrapper, envelope; see involucrum .
- inˌvo·luˈcral , inˌvo·luˈcrate adjective
involucre - Science Definition
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.