Definition of naiad noun from the Oxford Advanced Learner's Dictionary

 

naiad

 noun
noun
BrE BrE//ˈnaɪæd//
 
; NAmE NAmE//ˈnaɪæd//
 
(pl. naiads, naiades
BrE BrE//ˈnaɪædiːz//
 
; NAmE NAmE//ˈnaɪædiːz//
 
)
 
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(in ancient stories) a water spirit Word Originvia Latin from Greek Naias, Naiad-, from naein ‘to flow’. Use as a term in entomology dates from the early 20th cent.
See the Oxford Advanced American Dictionary entry: naiad