Source : Webster's Revised Unabridged Dictionary (1913)

Antherozoid \An`ther*o*zoid\, Antherozooid \An`ther*o*zoo"id\,
   n. [Gr. ? flowery + ? animal + -oid. See {Zooid}.] (Bot.)
   One of the mobile male reproductive bodies in the antheridia
   of cryptogams.

Source : WordNet®

antherozoid
     n : a motile male gamete of a plant such as an alga or fern or
         gymnosperm [syn: {spermatozoid}]