thyrse

[thurs]
noun Botany.
  1. a compact branching inflorescence, as of the lilac, in which the main axis is indeterminate and the lateral axes are determinate.
Also thyrsus.

Origin of thyrse

1595–1605; < French < Latin thyrsus thyrsus
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for thyrse

thyrse

thyrsus (ˈθɜːsəs)

noun plural thyrses or thyrsi (ˈθɜːsaɪ)
  1. botany a type of inflorescence, occurring in the lilac and grape, in which the main branch is racemose and the lateral branches cymose
Derived Formsthyrsoid, adjective

Word Origin for thyrse

C17: from French: thyrsus
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

thyrse in Science

thyrse

[thûrs]
  1. A dense inflorescence in which the side branches end in cymes, as in the lilac. Also called thyrsus See more at inflorescence.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.