Noun | 1. | Hemiramphidae - halfbeaks; marine and freshwater fishes closely related to the flying fishes but not able to glide fish family - any of various families of fish order Synentognathi, Synentognathi - order of fishes having spineless fins; needlefishes; sauries; flying fishes; halfbeaks halfbeak - tropical and subtropical marine and freshwater fishes having an elongated body and long protruding lower jaw |