germinal disc

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Related to germ disc: embryonic disk

ger·mi·nal disc

, germ disc
the point in a telolecithal ovum where the embryo begins to be formed.

ger·mi·nal disc

, germ disc (jĕr'mi-năl disk, jĕrm)
The point in a telolecithal oocyte where the embryo begins to form.