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area opaca

American

[oh-pey-kuh] / oʊˈpeɪ kə /

noun

Embryology.

the opaque area of the blastoderm surrounding the area pellucida.

Etymology

Origin of area opaca

From New Latin

Example Sentences

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area opaca

Blood, it may be mentioned, first appears in the area vasculosa, the outer portion of the area opaca.

From Text Book of Biology, Part 1: Vertebrata by Wells, H. G. (Herbert George)

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023