1 tiger fish | Definition of tiger fish

tiger fish

noun

Definition of tiger fish

: any of various fishes that suggest a tiger usually either in being extremely voracious or in being marked with black: such as
a : any of several vigorous predaceous freshwater sport fishes (genus Hydrocyon) widely distributed in African rivers
b : piranha
c Africa : a black-striped Indo-Pacific sea perch (Therapon jarbua)