1.NounAny of various elongate fish from the family Echeneidae, the dorsal fin of which is in the form of a suction disc that can take a firm hold against the skin of larger marine animals. .mw-parser-output .defdate{font-size:smaller}
2.NounA serpent.
3.NounA delay; a hindrance, an obstacle.
4.NounA surgical instrument, intended to retain parts in their places.