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Definition of essential oil noun from the Oxford Advanced Learner's Dictionary

essential oil

noun
 
/ɪˌsenʃl ˈɔɪl/
 
/ɪˌsenʃl ˈɔɪl/
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  1. an oil taken from a plant, used because of its strong smell for making perfume and in aromatherapy
See essential oil in the Oxford Advanced American Dictionary
trait
noun
 
 
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