D defs.my
Entry 1 sense Webster, 1913

Mermaid

/mẽrm'-ādˌ/ · Mer·maid · IPA /ˈmɝ.meɪd/
01 n. 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 …
  1. 1.
    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.
Phrases & compounds
Mermaid fish — the angel fish (Squatina).
Mermaid's glove — a British branched sponge somewhat resembling a glove.
Mermaid's head — a European spatangoid sea urchin (Echinocardium cordatum) having some resemblance to a skull.
Mermaid weed — an aquatic herb with dentate or pectinate leaves (Proserpinaca palustris and Proserpinaca pectinacea).