A small, circular, white spot (approximately 2-3 mm across) on the surface of the yellow yolk of an egg that has been laid. The nucleus of the egg is in the germinal disc. [ http://en.wikipedia.org/wiki/Germinal_disc ]

This is just here as a test because I lose it

Term information

definition

A small, circular, white spot (approximately 2-3 mm across) on the surface of the yellow yolk of an egg that has been laid. The nucleus of the egg is in the germinal disc.

has exact synonym

germinal disc

has related synonym

germ disc

embryonic disc

gastrodisk

id

UBERON:0004749