| Noun | 1. | genus Lepisosteus - type genus of the Lepisosteidae: freshwater garsfish genus - any of various genus of fish family Lepisosteidae, Lepisosteidae - comprises the genus Lepisosteus billfish, gar, garfish, garpike, Lepisosteus osseus - primitive predaceous North American fish covered with hard scales and having long jaws with needlelike teeth |