gonidium
Americannoun
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(in algae) any one-celled asexual reproductive body, as a tetraspore or zoospore.
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an algal cell, or a filament of an alga, growing within the thallus of a lichen.
noun
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a green algal cell in the thallus of a lichen
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an asexual reproductive cell in some colonial algae
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An asexual reproductive cell found in certain algae that form colonies. Gonidia undergo repeated mitoses to form new colonies, which then hatch out of the parent colonies.
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A chlorophyll-bearing, photosynthetic algal cell housed in the thallus of a lichen.
Other Word Forms
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Nouns
Etymology
Origin of gonidium
1835–45; < New Latin, equivalent to gon- gon- + -idium noun suffix
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.
See Examples For:
It is also to be noted as a significant fact, that the cellulose wall was intact at the apex, instead of showing the opening through which in ordinary cases the gonidium escapes.
From Scientific American Supplement, No. 460, October 25, 1884 by Various
Eminent English authorities have advanced the theory that the ciliated gonidium of Vaucheria is in reality a densely crowded aggregation of biciliated zoospores, similar to those found in many other confervoid algæ.
From Scientific American Supplement, No. 460, October 25, 1884 by Various
These contents are now gradually forming themselves into the spore or "gonidium," as Carpenter calls it, in distinction from the true sexual spores, which he terms "oospores."
From Scientific American Supplement, No. 460, October 25, 1884 by Various
The motile force is imparted to the gonidium by dense rows of waving cilia with which it is completely surrounded.
From Scientific American Supplement, No. 460, October 25, 1884 by Various
That the different forms and varieties of gonidia corresponded with parallel types of algæ; 4th.
From Fungi: Their Nature and Uses by Cooke, M. C. (Mordecai Cubitt)
The lichen-thallus is composed of chains or groups of round chlorophyl-containing cells, called "gonidia," and masses of interwoven rows of elongated cells which constitute the hyphæ.
From Scientific American Supplement, No. 531, March 6, 1886 by Various
These gonidia are always in the plumpest state, and with the freshest, healthiest colour possible.
From Fungi: Their Nature and Uses by Cooke, M. C. (Mordecai Cubitt)
But who has ever seen the gonidia of lichens the worse for having the ‘hypha’ growing amongst them?
From Fungi: Their Nature and Uses by Cooke, M. C. (Mordecai Cubitt)
This he thinks is the only way in which it can be accounted for that the gonidia of diverse lichens should be almost identical.
From Fungi: Their Nature and Uses by Cooke, M. C. (Mordecai Cubitt)
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.
