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megasporangium

[meg-uh-spaw-ran-jee-uh m, -spoh-] /ˌmɛg ə spɔˈræn dʒi əm, -spoʊ-/
noun, plural megasporangia
[meg-uh-spaw-ran-jee-uh, -spoh-] /ˌmɛg ə spɔˈræn dʒi ə, -spoʊ-/ (Show IPA).
Botany
1.
a sporangium containing megaspores.
Origin
1885-1890
1885-90; mega- + sporangium
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for megasporangium

megasporangium

/ˌmɛɡəspɔːˈrændʒɪəm/
noun (pl) -gia (-dʒɪə)
1.
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 & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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megasporangium in Science
megasporangium
  (měg'ə-spə-rān'jē-əm)   
Plural megasporangia
A plant structure in which megaspores are formed, such as those of the female cones of pines.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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