Botany. gemma (def. 2).
Zoology. an asexually produced mass of cells that is capable of developing into an animal, as a freshwater sponge.
Evolution. one of the hypothetical living units conceived by Darwin in the theory of pangenesis as the bearers of the hereditary attributes.
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How to use gemmule in a sentence
Some of the gemmules are often much smaller than the others.Freshwater Sponges, Hydroids & Polyzoa | Nelson Annandale
In order that each living creature may be thus furnished, the number of such gemmules in each must be inconceivably great.
For how can gemmules attach themselves to others to which they do not normally or generally succeed?
Mr. Darwin himself is, of course, fully aware that there must be some limit to this aggregation of gemmules.
No creature can possess such gemmules unless it inherits them from its parents, grandparents, or its less remote ancestors.
British Dictionary definitions for gemmule
zoology a cell or mass of cells produced asexually by sponges and developing into a new individual; bud
botany a small gemma
a small hereditary particle postulated by Darwin in his theory of pangenesis
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 gemmule
A small gemma or similar structure, especially a reproductive structure in some sponges that remains dormant through the winter and later develops into a new individual.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.