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area opaca
[ oh-pey-kuh ]
/ oʊˈpeɪ kə /
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noun Embryology.
the opaque area of the blastoderm surrounding the area pellucida.
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Origin of area opaca
From New Latin
Words nearby area opaca
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use area opaca in a sentence
Junction between the white-yolk spheres and the hypoblast cells at the passage from the area pellucida to the area opaca.
The Works of Francis Maitland Balfour, Volume IV (of 4)|Francis Maitland BalfourTowards the end of the first day blood-vessels begin to be developed in the inner part of the mesoblast of the area opaca.
The Works of Francis Maitland Balfour, Volume III (of 4)|Francis Maitland BalfourThe area vasculosa also grows round the yolk, and completely encloses it not long after the area opaca.
The Works of Francis Maitland Balfour, Volume III (of 4)|Francis Maitland BalfourThe narrow darker ring of blastoderm, outside the area pellucida, is the commencing area opaca.
The Works of Francis Maitland Balfour, Volume III (of 4)|Francis Maitland Balfour