ovicell

from The Collaborative International Dictionary of English v.0.48

Ovicell \O"vi*cell`\, n. [Ovum + cell.] (Zool.)
   One of the dilatations of the body wall of Bryozoa in which
   the ova sometimes undergo the first stages of their
   development. See Illust. of {Chilostoma}.
   [1913 Webster]