archegonium

archegonium

[ahr-ki-goh-nee-uhm]
noun, plural archegonia [ahr-ki-goh-nee-uh] . Botany.
the female reproductive organ in ferns, mosses, etc.

Origin:
1850–55; < Neo-Latin, equivalent to archegon- (< Greek archégonos first of a race; see arche-, gono-) + -ium < Greek -ion diminutive suffix

archegonial, archegoniate [ahr-ki-goh-nee-it, -eyt] , adjective
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Collins
World English Dictionary
archegonium (ˌɑːkɪˈɡəʊnɪəm)
 
n , pl -nia
a female sex organ, occurring in mosses, spore-bearing vascular plants, and gymnosperms, that produces a single egg cell in its swollen base
 
[C19: from New Latin, from Greek arkhegonos original parent, from arkhe- chief, first + gonos seed, race]
 
arche'goniate
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
archegonium   (är'kĭ-gō'nē-əm)  Pronunciation Key 
Plural archegonia
The egg-producing organ occurring in bryophytes (such as mosses and liverworts), ferns, and most gymnosperms. The archegonium is a multicellular, often flask-shaped structure that contains a single egg. Compare antheridium.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

archegonium

the female reproductive organ in ferns and mosses. An archegonium also occurs in some gymnosperms, e.g., cycads and conifers. A flask-shaped structure, it consists of a neck, with one or more layers of cells, and a swollen base-the venter-which contains the egg. Neck-canal cells, located above the egg, disappear as the archegonium matures, thus producing a passage for entry of the sperm. The sperm are produced in the corresponding male reproductive organ, the antheridium.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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