megasporangium


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meg·a·spo·ran·gi·um

 (mĕg′ə-spə-răn′jē-əm)
n. pl. meg·a·spo·ran·gi·a (-jē-ə)
A structure in which megaspores are formed.
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.

megasporangium

(ˌmɛɡəspɔːˈrændʒɪəm)
n, pl -gia (-dʒɪə)
(Botany) the structure in certain spore-bearing plants in which the megaspores are formed: corresponds to the ovule in seed plants. Compare microsporangium
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.megasporangium - a plant structure that produces megasporesmegasporangium - a plant structure that produces megaspores
sporangium, spore case, spore sac - organ containing or producing spores
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Sporogenesis usually excludes discussion of megasporogenesis in the seed plants where resultant megaspores remain enclosed within surrounding tissues of the megasporangium (ovule) and, at least in angiosperms, lack an elaborate sporoderm.
Within the megasporangium located between the micropyle and nucellus, a megaspore mother cell undergoes meiosis, producing four megaspores.
megasporangium The structure in which megaspores are produced.