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stipule

[ stip-yool ]
/ ˈstɪp yul /
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noun Botany.

one of a pair of lateral appendages, often leaflike, at the base of a leaf petiole in many plants.

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Origin of stipule

1785–95; <Latin stipula stalk, noun use of feminine of *stipulus firm (recorded in LL); akin to stipes
stip·u·lar, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for stipule

stipule
/ (ˈstɪpjuːl) /

noun

a small paired usually leaflike outgrowth occurring at the base of a leaf or its stalk
stipular (ˈstɪpjʊlə), adjective
C18: from Latin; see stipe, stipes
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 stipule

stipule
[ stĭpyōōl ]

One of the usually small, paired parts resembling leaves at the base of a leafstalk in certain plants, such as roses and beans.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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