What is "clingfish"

clingfish \clingfish\ n. very small (to 3 inches) flattened marine fish with a sucking disc on the abdomen for clinging to rocks etc.

n. A small marine fish of the family (taxlink Gobiesocidae family noshow=1) which has a sucking disc on its underside that it uses to cling to rocks and seaweed.

1. n. very small (to 3 inches) flattened marine fish with a sucking disc on the abdomen for clinging to rocks etc.

2. [also: clingfishes (pl)]