tea tree

noun

1
: any of various Australasian shrubs or small trees (genus Leptospermum) of the myrtle family that form dense thickets and have aromatic evergreen foliage
2
: any of various melaleucas (especially Melaleuca alternifolia) with aromatic leaves that yield an essential oil used especially as an antiseptic

Examples of tea tree in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The finish is long and perfumed, with oak and a touch of tea tree oil. Chris Perugini, Forbes.com, 29 June 2026 The formula combines an acne-fighting trio of AHAs, BHAs, and PHAs to exfoliate away dead skin cells and unclog pores, while tea tree leaf water further targets breakouts, and calamine keeps excess oil in check. Christa Joanna Lee, Allure, 24 June 2026 So the addition of tea tree oil and mint, which notably can relieve dryness and itch while improving overall scalp health, rounds out the formula to help deliver those hair-thickening results. Erika Reals, InStyle, 24 June 2026 Mosquitoes don't like strong scents like lavender, cinnamon, thyme, tea tree, eucalyptus, or citronella. Madeline Buiano, Martha Stewart, 17 June 2026 See All Example Sentences for tea tree

Word History

Etymology

from the use of an infusion of their leaves as a beverage

First Known Use

1790, in the meaning defined at sense 1

Time Traveler
The first known use of tea tree was in 1790

Browse Nearby Words

Cite this Entry

“Tea tree.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tea%20tree. Accessed 5 Jul. 2026.

More from Merriam-Webster on tea tree

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster