area opaca


Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Wikipedia.
Related to area opaca: blastoderm, area pellucida, Hensen's node

area opaca

[′er·ē·ə ō′päk·ə]
(embryology)
The opaque peripheral area of the blastoderm of birds and reptiles, continuous with the yolk.
Mentioned in ?