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English definition of “ultramarine”

ultramarine

noun [U] uk   /ˌʌl.trə.məˈriːn/ us  
a bright blue colourLess common coloursCommon colours
ultramarine
adjective uk   us  
of a bright blue colour
(Definition of ultramarine from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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