any marine and freshwater teleost fish of the tropical and subtropical family Hemiramphidae, having an elongated body with a short upper jaw and a long protruding lower jaw
halfbeak in American English
(ˈhæfˌbik)
noun
any of a family (Hemirhamphidae, order Atheriniformes) of small, long-bodied, tropicalmarine bony fishes with a greatly extended lower jaw and a short upper jaw