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[rey-seem, ruh-] /reɪˈsim, rə-/
noun, Botany
a simple indeterminate inflorescence in which the flowers are borne on short pedicels lying along a common axis, as in the lily of the valley.
a compound inflorescence in which the short pedicels with single flowers of the simple raceme are replaced by racemes.
Origin of raceme
1775-85; < Latin racēmus cluster of grapes, bunch of berries
Related forms
racemed, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for raceme
  • The inflorescence is a long-stalked raceme bearing whorls of white flowers.
  • It branches at the top with the flowers in an erect short terminal raceme at the pinnacle.
  • They are sometimes close to an inch long, but usually a little less, and are borne in a long raceme that extends above the leaves.
  • The inflorescence is a densely clustered raceme on a stem that is usually taller than the foliage.
  • The raceme appears from the stem between the leaves.
  • The flowers are arranged in a terminal raceme or arise singly from the upper leaf axils.
  • The sorghum inflorescence is a raceme consisting of several spikelets or flowers.
  • Panicle is a raceme with branches and each branch having a smaller raceme of flowers.
  • A reduced raceme or cyme that grows in the axil of a bract is called a fascicle.
British Dictionary definitions for raceme


an inflorescence in which the flowers are borne along the main stem, with the oldest flowers at the base. It can be simple, as in the foxglove, or compound See panicle
Word Origin
C18: from Latin racēmus bunch of grapes
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 raceme

type of flower cluster, 1785, from Latin racemus "a cluster of grapes" (see raisin). Related: Racemic; racemism.

Online Etymology Dictionary, © 2010 Douglas Harper
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raceme in Medicine

raceme ra·ceme (rā-sēm', rə-)
An optically inactive chemical compound.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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raceme in Science
An indeterminate inflorescence in which each flower grows on its own stalk from a common stem. The lily of the valley and snapdragon have racemes. See illustration at inflorescence.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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