Spĕrm'a-to-zō'id, n.

n. [Gr. σπέρμα, σπέρματος, seed, and εἶδος, form.]

1. (Physiol.) One of the microscopic motile animalcular-like particles that exist in the spermatic fluid, and are its essential portion;—called also spermatozoön. Carpenter.
2. (Bot.) One of the minute bodies found in the antheridia of some cryptogamous plants, and supposed to be analogous to the spermatozoa of animals.