D defs.my
Entry 1 sense Webster, 1913

Sea louse

/sē lous/ · Sea· louse · IPA
01 Any one of numerous species of isopod crustaceans of Cymothoa, Livoneca, and allied genera, mostly parasites on fishes.
  1. 1.
    Any one of numerous species of isopod crustaceans of Cymothoa, Livoneca, and allied genera, mostly parasites on fishes.(Zool.)