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