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exospore

[ek-suh-spawr, -spohr]
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noun Botany, Mycology.
  1. the outer coat of a spore.
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Origin of exospore

First recorded in 1855–60; exo- + spore
Related formsex·o·spor·al [ek-suh-spawr-uh l, -spohr-, ek-sos-per-] /ˌɛk səˈspɔr əl, -ˈspoʊr-, ɛkˈsɒs pər-/, ex·o·spor·ous, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for exospore

Historical Examples

  • Sometimes the exospore is ruptured and detached loosely from the germinating spore.

    Fungi: Their Nature and Uses

    Mordecai Cubitt Cooke

British Dictionary definitions for exospore

exospore

noun
  1. the outer layer of the spores of some algae and fungi
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Derived Formsexosporous, adjective
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