eucalyptus oil
noun
: any of various essential oils obtained from the leaves of various members of the genus Eucalyptus (as E. globulus) and used in pharmaceutical preparations (as antiseptics and cough drops)
Cite this Entry
“Eucalyptus oil.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/eucalyptus%20oil. Accessed 27 Nov. 2025.
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