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exospore

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

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
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