noun. A legendary sea creature having the head and upper body of a woman and the tail of a fish.

noun. A fabled marine or amphibian creature having the form of a woman above the waist and that of a fish below, endowed with human attributes, and usually working harm, with or without malignant intent, to mortals with whom she might be thrown into relation.

noun. A fabled marine creature, typically represented as having the upper part like that of a woman, and the lower like a fish; a sea nymph, sea woman, or woman fish.

noun. the angel fish (Squatina).

noun. a British branched sponge somewhat resembling a glove.

noun. a European spatangoid sea urchin (Echinocardium cordatum) having some resemblance to a skull.

noun. an aquatic herb with dentate or pectinate leaves (Proserpinaca palustris and Proserpinaca pectinacea).

noun. A mythological creature with a woman's head and upper body, and a tail of a fish.

noun. half woman and half fish; lives in the sea