An approximately spherical or ellipsoidal body produced by birds, reptiles, insects and other animals, housing the embryo during its development.
User Defined Definitions
"animal reproductive body consisting of an ovum or embryo together with nutritive and protective envelopes; especially the thin-shelled reproductive body laid by e.g. female birds"
"one of the two male reproductive glands that produce spermatozoa and secrete androgens"