antheridium

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an·ther·id·i·um

 (ăn′thə-rĭd′ē-əm)
n. pl. an·ther·id·i·a (-ē-ə)
A sperm-producing organ occurring in seedless plants, fungi, and algae.

[New Latin : anthēra, anther; see anther + -idium, diminutive suff. (from Greek -idion).]

an′ther·id′i·al 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.

antheridium

(ˌænθəˈrɪdɪəm) or

antherid

n, pl -ridia (-ˈrɪdɪə) or -rids
(Botany) the male sex organ of algae, fungi, bryophytes, and spore-bearing vascular plants, such as ferns, which produces antherozoids
[C19: from New Latin, diminutive of anthēra anther]
ˌantherˈidial adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

an•ther•id•i•um

(ˌæn θəˈrɪd i əm)

n., pl. -ther•id•i•a (-θəˈrɪd i ə)
a male reproductive structure producing gametes, occurring in ferns, mosses, fungi, and algae.
[1850–55; < New Latin]
an`ther•id′i•al, 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.antheridium - the male sex organ of spore-producing plants; produces antherozoids; equivalent to the anther in flowers
reproductive structure - the parts of a plant involved in its reproduction
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