Source : Webster's Revised Unabridged Dictionary (1913)

Spermist \Sperm"ist\, n. (Biol.)
   A believer in the doctrine, formerly current, of encasement
   in the male (see {Encasement}), in which the seminal thread,
   or spermatozoid, was considered as the real animal germ, the
   head being the true animal head and the tail the body.