copepod 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}]
Copepod \Cop"e*pod\, a. (Zool.) Of or pertaining to the Copepoda. -- n. One of the Copepoda. [1913 Webster]