embryonic sac

1 definition found

embryonic sac - Collaborative International Dictionary of English v.0.48 :

  Embryonic \Em`bry*on"ic\, a. (Biol.)
     Of or pertaining to an embryo; embryonal; rudimentary.
     [1913 Webster]
  
     Embryonic sac or Embryonic vesicle (Bot.), the vesicle
        within which the embryo is developed in the ovule; --
        sometimes called also amnios sac, and embryonal sac.
        [1913 Webster]