exospore

[ek-suh-spawr, -spohr]

noun Botany, Mycology.

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 of exospore

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

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