oospore

American  

[oh-uh-spawr, -spohr] / ˈoʊ əˌspɔr, -ˌspoʊr /

noun

Biology.

1. a fertilized egg within an oogonium.

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oospore British  

/ ˈəʊəˌspɔː /

noun

1. a thick-walled sexual spore that develops from a fertilized oosphere in some algae and fungi

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oospore Scientific  

/ ō′ə-spôr′ /

1. A fertilized female cell or zygote, especially one with thick chitinous walls, developed from a fertilized oosphere.

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Other Word Forms

• oosporic
  adjective
• oosporous
  adjective

Etymology

Origin of oospore

First recorded in 1860–65; oo- + -spore

Example Sentences

Two separate portions of its protoplasm become fused together, surround themselves with a thick coat and give rise to a sort of vegetable egg called an oospore.

From Discourses Biological and Geological Essays by Huxley, Thomas Henry

The product of the union of an antherozoid and an oosphere is termed an oospore.

From Scientific American Supplement, No. 531, March 6, 1886 by Various

Reproduction from an oospore formed by the combination of two sexual cells.

From Scientific American Supplement, No. 531, March 6, 1886 by Various

After the production of this oospore the parent filament gradually loses its vitality and slowly decays.

From Scientific American Supplement, No. 460, October 25, 1884 by Various

The oospore on germination usually gives origin to a zoosporangium, but may form directly a germ tube which infects the host.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" by Various