1. (n.) A sea nymph, one of the daughters of Nereus, who were attendants upon Neptune, and were represented as riding on sea horses, sometimes with the human form entire, and sometimes with the tail of a fish.

2. (n.) Any species of Nereis. The word is sometimes used for similar annelids of other families.

Davy Dylan Neptune Nereid Nereus Oceanid Oceanus Poseidon Thetis Triton Varuna fresh-water nymph kelpie limniad man fish mermaid merman naiad nix nixie ocean nymph sea devil sea god sea nymph sea-maid sea-maiden seaman siren undine water god water spirit water sprite