any small spiny-finned fish of the family Gobiidae, of coastal or brackish waters, having a large head, an elongated tapering body, and the ventral fins modified as a sucker
2.
any other gobioid fish
Word origin
C18: from Latin gōbius gudgeon, fish of little value, from Greek kōbios
goby in American English
(ˈgoʊbi)
nounWord forms: pluralˈgobies or ˈgoby
any of a family (Gobiidae) of small, predatory, spiny-finned percoid fishes of tropical and subtropical seas: the pelvic fins are united as a suction disk that clings to rocky surfaces