(Greek mythology) One of 50 sea nymphs who were attendants upon Poseidon (Neptune), and were represented as riding on sea horses, sometimes in human form and sometimes with the tail of a fish.

(astronomy) One of the satellites of the planet Neptune

plural of nereid

A mouse monoclonal antibody that acts as a TNF inhibitor.

A river in Croatia and Bosnia and Herzegovina.

(zoology) Any annelid resembling Nereis, or of the family Lycoridae or allied families.

plural of nereidian

(zoology) Any polychaete worm of the Nereididae.

plural of nereidid

Any toxin based on the parent compound 4-N,N-dimethylamino-1,2-dithiolane, usually used as an insecticide