1. Minute marine or freshwater crustaceans usually having six pairs of limbs on the thorax; some abundant in plankton and others parasitic on fish
   "copepod crustaceans are a major food source for many marine animals";
   - copepod

Derived forms: copepod crustaceans

Type of: crustacean

Part of: Copepoda, plankton, subclass Copepoda