资料来源 : Webster's Revised Unabridged Dictionary (1913)

Gregarine \Greg"a*rine\, a. (Zo["o]l.)
   Of or pertaining to the Gregarin[ae]. -- n. One of the
   Gregarin[ae].

资料来源 : WordNet®

gregarine
     n : vermiform protozoans parasitic in insects and other
         invertebrates