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

 

cynosure

 noun
noun
BrE BrE//ˈsɪnəzjʊə(r)//
 
, BrE//ˈsɪnəʃʊə(r)//
 
; NAmE NAmE//ˈsɪnəʃʊr//
 
; BrE BrE//ˈsaɪnəzjʊə(r)//
 
, BrE//ˈsaɪnəʃʊə(r)//
 
; NAmE NAmE//ˈsaɪnəʃʊr//
 
[singular](formal)
 
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a person or thing that is the centre of attention Ruth was the cynosure of all eyes. Word Origin late 16th cent.: from French, or from Latin cynosura, from Greek kunosoura ‘dog's tail’ (also ‘Ursa Minor’), from kuōn, kun- ‘dog’ + oura ‘tail’. The term originally denoted the constellation Ursa Minor, or the pole star which it contains, long used as a guide by navigators.
See the Oxford Advanced American Dictionary entry: cynosure