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

     

    heliotrope

     noun
    noun
    BrE BrE//ˈhiːliətrəʊp//
     
    ; NAmE NAmE//ˈhiːliətroʊp//
     
     
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  1. 1 [countable, uncountable] a garden plant with pale purple flowers with a sweet smell
  2. 2 [uncountable] a pale purple colour
  3. Word Origin Old English eliotropus (originally applied to various plants whose flowers turn towards the sun), via Latin from Greek hēliotropion ‘plant turning its flowers to the sun’, from hēlios ‘sun’ + trepein ‘to turn’. The spelling was influenced by French héliotrope.
See the Oxford Advanced American Dictionary entry: heliotrope