Definition of aquamarine noun from the Oxford Advanced American Dictionary

     

    aquamarine

     noun
    noun
    NAmE//ˌækwəməˈrin//
     
    , NAmE//ˌɑ‑//
     
     
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  1. 1[countable, uncountable] a pale greenish-blue semi-precious stone
  2. 2[uncountable] a pale greenish-blue color
aquamarineadjective
 
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an aquamarine sea