The Collaborative International Dictionary
Embryonal
Embryonal \Em"bry*o*nal\, a. (Biol.) Pertaining to an embryo, or the initial state of any organ; embryonic.
Wiktionary
embryonal
a. embryonic
WordNet
embryonal
adj. of or relating to an embryo; "the embryonic membrane" [syn: embryonic]
of an organism prior to birth or hatching; "in the embryonic stage"; "embryologic development" [syn: embryonic, embryologic]