[gram.pus] n [alter. of ME graspey, grapay, fr. MF graspeis, fr. gras fat (fr. L crassus) + peis fish, fr. L piscis--more at crass, fish] (ca. 1529) 1: a dolphin (Grampus griseus) of temperate and tropical seas; also: any of various small cetaceans
2: the giant whip scorpion (Mastigoproctus giganteus) of the southern U.S.