noun. minute marine or freshwater crustaceans usually having six pairs of limbs on the thorax; some abundant in plankton and others parasitic on fish.
- fish louse
- subclass Copepoda
- water flea
Sentences with copepod
Scientists have found copepod cysts estimated to be 300 years old.
2. Noun, singular or mass
However, that fish must have already eaten a small crustacean known as a copepod, another tapeworm host.