| 单词 | microsporangium |
| 释义 | microsporangium[ mahy-kroh-spaw-ran-jee-uhm, -spoh- ] / ˌmaɪ kroʊ spɔˈræn dʒi əm, -spoʊ- / noun, plural mi·cro·spo·ran·gi·a [mahy-kroh-spaw-ran-jee-uh, -spoh-]. /ˌmaɪ kroʊ spɔˈræn dʒi ə, -spoʊ-/. Botany.a sporangium containing microspores. Origin of microsporangiumFirst recorded in 1880–85; micro- + sporangium Words nearby microsporangiummicrospectrophotometry, microspectroscope, microspherocytosis, microsphygmy, microsplenia, microsporangium, microspore, microsporocyte, microsporogenesis, microsporophyll, Microsporum Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for microsporangiummicrosporangium / (ˌmaɪkrəʊspɔːˈrændʒɪəm) / noun plural -gia (-dʒɪə)the structure in certain spore-bearing plants in which the microspores are formed: corresponds to the pollen sac in seed plantsCompare megasporangium 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 Scientific definitions for microsporangiummicrosporangium [ mī′krō-spə-răn′jē-əm ] Plural microsporangiaA plant structure in which microspores are formed. The pollen-producing male cones of a pine consist of many microsporangia, where the microspores of the pine develop into pollen grains to be dispersed. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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