Spermatheca (?), n.; pl. Spermathecæ (#). [NL., from Gr. &unr_;&unr_;&unr_;&unr_; seed + &unr_;&unr_;&unr_;&unr_; case, or receptacle.] (Zoöl.) A small sac connected with the female reproductive organs of insects and many other invertebrates, serving to receive and retain the spermatozoa.
[1913 Webster]