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propagule

[prop-uh-gyool] /ˈprɒp əˌgyul/
noun
1.
Botany, Mycology. any structure capable of being propagated or acting as an agent of reproduction.
Also, propagulum
[proh-pag-yuh-luh m] /proʊˈpæg yə ləm/ (Show IPA)
.
Origin
1855-1860
1855-60; < Neo-Latin propāgulum, derivative of propāgō shoot, runner; see propagate, -ule
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for propagule
  • propagule sources are also an important determinant of diversity and invasive patterns.
  • Eradication requires either depleting or removing the propagule bank, which is not a trivial task.
  • propagule dispersal distance and the size and spacing of marine reserves.
  • propagule: any part of a plant that can give rise to a new individual and aids in dispersal of the species.
  • Popularity and propagule pressure: determinants of introduction and establishment of aquarium fish.
British Dictionary definitions for propagule

propagule

/ˈprɒpəˌɡjuːl/
noun
1.
a plant part, such as a bud, that becomes detached from the rest of the plant and grows into a new plant
Word Origin
C20: from propag(ate) + -ule
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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propagule in Science
propagule
  (prŏp'ə-gyl')   
  1. Any of various structures that can give rise to a new individual organism, especially parts of a plant that serve as means of vegetative reproduction, such as corms, tubers, offsets, or runners. Seeds and spores are also propagules.

  2. A elongated, dart-shaped seedling of various mangrove species growing in swampy habitats. A propagule develops from a seed that germinates while still attached to the parent tree. The parent supplies the seedling with nutrients and water until it becomes heavy and drops off. Its pointed end sticks in the mud or it floats away to colonize another area.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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