EXAMPLES | WORD ORIGIN noun, plural an·ther·id·i·a . [an-th uh- rid-ee- uh] /ˌæn θəˈrɪd i ə/ . Botany, Mycology a male reproductive structure producing gametes, occurring in ferns, mosses, fungi, and algae. Origin of antheridium
dating back to
see origin at
-idium Related forms an·ther·id·i·al, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for antheridium Historical Examples of antheridium
The index reference for "
Antheridium" should probably be 159, rather than 150, but was not changed.
A fruiting portion, magnified, showing the structure; a sporocarp, and an
antheridium consists at first of a basal cell and a terminal one.
These cells, especially the outer ones, develop a great amount of a red pigment, giving the
antheridium its characteristic color.
The male plant has no definite stem, and consists of a single concave leaf protecting the
antheridium. British Dictionary definitions for antheridium noun plural -ia ( -ɪə) the male sex organ of algae, fungi, bryophytes, and spore-bearing vascular plants, such as ferns, which produces antherozoids Derived Forms antheridial, adjective Word Origin for antheridium
C19: from New Latin, diminutive of
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Plural antheridia ( ăn′thə-rĭd) ′ē-ə An organ in certain organisms that produces male gametes. Antheridia are found in many groups of organisms, including the bryophytes, ferns, ascomycete fungi, and some algae. Most gymnosperms and all angiosperms, however, have lost the antheridium, and its role is filled by the pollen grain. Compare archegonium.
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