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microsporangium

American  
[mahy-kroh-spaw-ran-jee-uhm, -spoh-] / ˌmaɪ kroʊ spɔˈræn dʒi əm, -spoʊ- /

noun

Botany.

PLURAL

microsporangia

  1. a sporangium containing microspores.

microsporangium British  
/ ˌmaɪkrəʊspɔːˈrændʒɪəm /

noun

  1. the structure in certain spore-bearing plants in which the microspores are formed: corresponds to the pollen sac in seed plants Compare 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
microsporangium Scientific  
/ mī′krō-spə-răn′jē-əm /

PLURAL

microsporangia

  1. A 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.

Etymology

Origin of microsporangium

First recorded in 1880–85; micro- + sporangium

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

C, longitudinal section of a spike, with a single macrosporangium at the base; the others, microsporangia, × 3.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.