essential oil
noun
: any of a class of volatile oils that give plants their characteristic odors and are used especially in perfumes and flavorings, and for aromatherapy compare fixed oil
Examples of essential oil in a Sentence
Recent Examples on the Web
This silent humidifier also features a dim, ambient light and can be used as an essential oil diffuser.
—
Jennifer Hussein, Allure, 1 Jan. 2026
Various teas, foods, essential oils, and cosmetic products may contain chamomile.
—Wendy Wisner, Health, 30 Dec. 2025
Ingestion of 10 to 30 milliliters (ml) of clove essential oil—much more than what’s in water—can cause liver damage and overdose.
—Mark Gurarie, Verywell Health, 28 Dec. 2025
Set out cotton balls soaked in vinegar or peppermint or eucalyptus essential oils to repel mice.
—Karen Brewer Grossman, Southern Living, 28 Dec. 2025
See All Example Sentences for essential oil
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Jennifer Hussein, Allure, 1 Jan. 2026
Various teas, foods, essential oils, and cosmetic products may contain chamomile.
—Wendy Wisner, Health, 30 Dec. 2025
Ingestion of 10 to 30 milliliters (ml) of clove essential oil—much more than what’s in water—can cause liver damage and overdose.
—Mark Gurarie, Verywell Health, 28 Dec. 2025
Set out cotton balls soaked in vinegar or peppermint or eucalyptus essential oils to repel mice.
—Karen Brewer Grossman, Southern Living, 28 Dec. 2025
See All Example Sentences for essential oil
Cite this Entry
“Essential oil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/essential%20oil. Accessed 3 Jan. 2026.
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