antheridium
a male reproductive structure producing gametes, occurring in ferns, mosses, fungi, and algae.
Origin of antheridium
1Other words from antheridium
- an·ther·id·i·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use antheridium in a sentence
At the top of the axis in the male plant rise the antheridia, surrounded by an envelope of modified leaves called the perigonium.
These are probably the representatives of the anthers of flowering plants and of the antheridia of the ferns.
An Elementary Text-book of the Microscope | John William GriffithDe Bary and Pringsheim believe that these organs constitute the antheridia of the species of Saprolegnia to which they belong.
Fungi: Their Nature and Uses | Mordecai Cubitt CookeThe slightly thickened membrane of the antheridia encloses protoplasm which is finely granular.
Fungi: Their Nature and Uses | Mordecai Cubitt CookeImmediately after the formation of the antheridia new productions show themselves, both around the oocyst and within it.
Fungi: Their Nature and Uses | Mordecai Cubitt Cooke
British Dictionary definitions for antheridium
/ (ˌænθəˈrɪdɪəm) /
the male sex organ of algae, fungi, bryophytes, and spore-bearing vascular plants, such as ferns, which produces antherozoids
Origin of antheridium
1Derived forms of antheridium
- antheridial, adjective
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 antheridium
[ ăn′thə-rĭd′ē-əm ]
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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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