| strata | Plural of stratum. (05 Mar 2000) |
|---|---|
| macula germinativa | Archaic term for the nucleolus in the nucleus of an ovum; also refers to any germinal area. (05 Mar 2000) |
| membrana germinativa | In many eggs with a large amount of yolk, cell division (cleavage) is restricted to a superficial layer of the fertilized egg (meroblastic cleavage). This layer is termed the blastoderm. In birds it is a flat disc of cells at one pole of the egg and in insects an outer layer of cells surrounding the yolk mass. (18 Nov 1997) |
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