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

 

menthol

 noun
noun
BrE BrE//ˈmenθɒl//
 
; NAmE NAmE//ˈmenθɔːl//
 
, NAmE//ˈmenθɑːl//
 
[uncountable]
 
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a substance that tastes and smells of mint, that is used in some medicines for colds and to give a strong cool flavour to cigarettes, toothpaste, etc. Word Origin late 19th cent.: from German, from Latin mentha ‘mint’ + -ol.
See the Oxford Advanced American Dictionary entry: menthol