Meaning of “essential oil” in the English Dictionary

british dictionary

"essential oil" in British English

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essential oilnoun [ C ]

uk /ɪˌsen.ʃəl ˈɔɪl/ us /ɪˌsen.ʃəl ˈɔɪl/

an oil, usually with a strong smell, that is taken from a plant and is used to make perfume, or for rubbing into a person's body during massage:

Lavender, peppermint, and jasmine are essential oils that are widely available.

(Definition of “essential oil” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)