Medical Dictionary

area opaca

noun area opa·ca \-ō-ˈpā-kə\

Definition of AREA OPACA

:  the peripheral opaque area that surrounds the area pellucida of a vertebrate embryo (as of a bird) formed by discoidal cleavage
March 27, 2015
quiescent Hear it
Tranquilly at rest or causing no trouble
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