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One of four spores produced from a tetrasporangium.

tet′ra·spor′ic (-spôr′ĭk, -spŏr′-) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Biology) any of the asexual spores that are produced in groups of four in the sporangium (tetrasporangium) of any of the red algae
tetrasporic, tetrasporous adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈtɛ trəˌspɔr, -ˌspoʊr)

any of the four asexual spores produced by meiosis in red algae.
tet`ra•spor′ic (-ˈspɔr ɪk, -ˈspɒr-) tet•ra•spor•ous (ˌtɛ trəˈspɔr əs, -ˈspoʊr-, tɪˈtræs pər-) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tetraspore - one of the four asexual spores produced within a sporangium
spore - a small usually single-celled asexual reproductive body produced by many nonflowering plants and fungi and some bacteria and protozoans and that are capable of developing into a new individual without sexual fusion; "a sexual spore is formed after the fusion of gametes"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Moreover, pollen mother cells of sterile plants went into abnormal meiosis in which tetraspore, trispore, bispore, and even paraspore were formed.
The cytology of the tetrasporangium and the germinating tetraspore. Annals of Botany 18: 141-160.
If an optimum tetraspore release of 1.7 x [10.sup.5] spores x [g.sup.-1] and survival (85%) was achieved (Oza & Tewari 1994, Umamaheswara Rao 1976), only 59 kg of fertile tetrasporic thalli would be required.
Kjellman (1883:158) distinguished Polyides (as Polyides rotundus (Huds.) Greville) from Furcellaria by the character of its tetraspores and cites the northernmost occurrence of F.
pistillata is the type of species of the Gigartina genus [40, 41]; despite possessing an isomorphic triphasic lifecycle [42], it shows heterosporic thalli (i.e., producing both tetraspores and carpospores) [43, 44], which were found in all studied samples.