(biology) a small circular white spot on the surface of the yolk of an egg

plural of flippy disk

plural of slipped disk

plural of Secchi disk

A circular disk used to measure water transparency (and thus turbidity)

The cephalic disk of a rotifer, usually surrounded by a fringe of cilia.

plural of Alderson disk

A hypothetical megastructure in the form of a disk with a star located in a hole running through its axis, and massive enough to have its own atmosphere

plural of disk jockey

Alternative form of disc rot