birch oil

noun
\ ˈbərch- How to pronounce birch oil (audio) \

Medical Definition of birch oil

: an essential oil that consists chiefly of methyl salicylate and is obtained from the bark and twigs of the sweet birch (Betula lenta)

called also betula oil, sweet-birch oil

— compare oil of wintergreen

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Cite this Entry

“Birch oil.” The Merriam-Webster.com Medical Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/medical/birch%20oil. Accessed 19 January 2020.

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