n. (pl. same) 1 any mainly marine fish of the family Belonidae, esp. Belone belone, having long beaklike jaws with sharp teeth. Also called NEEDLEFISH. 2 US any similar freshwater fish of the genus Lepisosteus, with ganoid scales. Also called GAR or GARPIKE. 3 NZ & Austral. either of two marine fish of the genus Hemiramphus. Also called HALFBEAK.
[ app. f. OE gar spear + fisc FISH(1) ]