Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun fish_louse

1 sense of fish louse

Sense 1
fish louse -- (a kind of copepod)
       => copepod, copepod crustacean -- (minute marine or freshwater crustaceans usually having six pairs of limbs on the thorax; some abundant in plankton and others parasitic on fish)