nounˈnɪərɪɪdˈnɪriˌɪd
Zoology A bristle worm of the ragworm family (Nereidae ).
 Example sentencesExamples
-  Only further studies on nereids and other organisms will allow a better evaluation of the actual impact and chemistry of acute and persistent oil pollution on chemical communication in marine environments.
 
Origin
  
Mid 19th century: from modern Latin Nereidae, from the Greek name Nēreus (see Nereid).
proper nounˈnɪərɪɪdˈnɪriˌɪd
1Greek Mythology 
Any of the sea nymphs, daughters of Nereus. They include Thetis, mother of Achilles.
2Astronomy 
A satellite of Neptune, the furthest from the planet, discovered in 1949. It has an irregular shape (with a diameter of about 340 km) and an eccentric orbit.
  nounˈnɪriˌɪdˈnirēˌid
Zoology A bristle worm of the polychaete family (Nereidae).
 Example sentencesExamples
-  Only further studies on nereids and other organisms will allow a better evaluation of the actual impact and chemistry of acute and persistent oil pollution on chemical communication in marine environments.
 
Origin
  
Mid 19th century: from modern Latin Nereidae, from the Greek name Nēreus (see Nereid).
proper nounˈnirēˌidˈnɪriˌɪd
1Greek Mythology 
Any of the sea nymphs, daughters of Nereus. They include Thetis, mother of Achilles.
2Astronomy 
A satellite of Neptune, the farthest from the planet, discovered in 1949. It has an irregular shape, a diameter of 211 miles (340 km), and an eccentric orbit.