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[as-kuh-spawr, -spohr] /ˈæs kəˌspɔr, -ˌspoʊr/
noun, Mycology
a spore formed within an ascus.
Origin of ascospore
1870-75; asco- + spore
Related forms
[as-kuh-spawr-ik, -spor-] /ˌæs kəˈspɔr ɪk, -ˈspɒr-/ (Show IPA),
[as-kos-per-uh s, as-kuh-spawr-, -spohr-] /æsˈkɒs pər əs, ˌæs kəˈspɔr-, -ˈspoʊr-/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for ascospore
  • Conidia are produced in acervuli on the lesions resulting from ascospore infection.
  • We do not know which microbes may be involved in the ascospore germination process.
  • Mature cleistothecia will be harvested from leaves and monitored for ascospore maturity.
British Dictionary definitions for ascospore


one of the spores (usually eight in number) that are produced in an ascus
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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ascospore in Science
A sexually produced fungal spore formed within an ascus of ascomycetes. Ascospores have a haploid number of chromosomes and are formed by meiosis of the diploid zygote that results when the nuclei of sexually compatible hyphae fuse together. When an ascospore is released and lands in a place that is rich in nutrients, it germinates and sends out hyphae of its own.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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