- copepod, copepod crustacean - minute marine or fresh-water crustaceans usually having six pairs of limbs on the thorax; some abundant in plankton and others parasitic on fish
--1 is a kind of crustacean
--1 is a part of plankton
--1 is a member of Copepoda, subclass Copepoda
--1 has particulars: brit, britt; cyclops, water flea; fish louse