The Collaborative International Dictionary of English v.0.48:

Pseudovum \Pseu*do"vum\, n.; pl. Pseudova. [NL. See Pseudo-,
   and Ovum.] (Zool.)
   An egglike germ produced by the agamic females of some
   insects and other animals, and by the larv[ae] of certain
   insects. It is capable of development without fertilization.
   See Illust. of P[ae]dogenesis.
   [1913 Webster]