'Zoa' definitions:

Definition of 'Zoa'

From: GCIDE
  • Zoon \Zo"on\, n.; pl. Zoa. [NL., fr. Gr. zw^,on an animal.] (Zool.) (a) An animal which is the sole product of a single egg; -- opposed to zooid. --H. Spencer. (b) Any one of the perfectly developed individuals of a compound animal. [1913 Webster]