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[kuh-rol-uh] /kəˈrɒl ə/
noun, Botany
the inner envelope of floral leaves of a flower, usually of delicate texture and of some color other than green; the petals considered collectively.
Origin of corolla
1665-75; < Latin: little garland, equivalent to corōn(a) garland, corona + -la diminutive suffix; see -ule Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for corolla
  • These flowers have no corolla, the group of petals that normally color flowers.
  • Describing a corolla that has a short tubular portion and widely spreading lobes so that the whole corolla is saucer-shaped.
  • The petals are fused into a two-lipped corolla with a slightly longer lower lip.
  • The corolla is strongly two-lipped with a lavender-blue to lavender-rose corolla tube and throat.
  • corolla is the collective term for petals of a flower taken as a group within the calyx.
British Dictionary definitions for corolla


the petals of a flower collectively, forming an inner floral envelope Compare calyx
Word Origin
C17 dim. of L corōna crown
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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Word Origin and History for corolla

1670s, "crown," from Latin corolla, diminutive of corona "crown, garland" (see crown (n.)). Botanical use is from 1753.

Online Etymology Dictionary, © 2010 Douglas Harper
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corolla in Science
  (kə-rŏl'ə, kə-rō'lə)   
The petals of a flower considered as a group or unit. See more at flower.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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