Germinal disc

Germinal disc may refer to:

In birds

The germinal disc, also called the blastodisc, is a small, circular, white spot (approximately 1.5-3 mm across) on the surface of the yellow yolk of a bird's egg.

In mammals

The blastodisc is a round single-cell layer of cells inside the blastula from which the embryo is going to form.

gollark: I think it technically has its own, for the teletext chars and stuff.
gollark: Especially since you can run terminals pretty well over low-bandwidth networking.
gollark: I think mouse/visual IO is better for quite a few things, but terminals are very good for some tasks.
gollark: Why have icons? Apple devices have high-res screens, right? Just make it say the name of the application in very small text over and over again to fill up the squares.
gollark: Personally I consider rounding and shading very uncool.

References

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