1. minute marine or freshwater crustaceans usually having six pairs of limbs on the thorax; some abundant in plankton and others parasitic on fish; [syn: copepod, copepod crustacean]
WordNet (r) 3.0 (2006):
copepod crustacean
n 1: minute marine or freshwater crustaceans usually having six
pairs of limbs on the thorax; some abundant in plankton and
others parasitic on fish [syn: copepod, copepod
crustacean]