nereid

noun

1. (Greek, alt-of)Alternative letter-case form of Nereid.
2. (figuratively)A youthful and pretty bather.

   “I knew in the back of my mind that the “nereid” wore a bikini intended for photography and that she lived in that bikini all summer.”

3. (alt-of, alternative)Alternative form of nereidid.
4. (Greek)Any one of the fifty sea-nymphs who were daughters of the sea-god Nereus and attendants upon Poseidon (Neptune), and were represented as riding on sea horses, sometimes in human form and sometimes with the tail of a fish.

name

1. One of the satellites of the planet Neptune.