se·​bum | \ˈsē-bəm \

Definition of sebum 

: fatty lubricant matter secreted by sebaceous glands of the skin

Examples of sebum in a Sentence

Recent Examples on the Web

Its color results from the sebum's pigment, which darkens when exposed to air. Allure, "The Skin-Care Glossary: A Comprehensive Guide to Everything You Need to Know," 17 Aug. 2018 The oil mimics your skin’s natural sebum, which in turn keeps your face smooth and soft. Ashley Weatherford, The Cut, "Your Guide to Affordable Skin Care," 30 Mar. 2018 Acne is a pain in the ass to treat because of its many components: blocked pores, excess sebum, inflammation, and proliferation of bacteria. Meirav Devash, Allure, "Everything You Need to Know About CBD Oil in Beauty Products," 25 June 2018 These are caused by a combination of factors: bacteria, excess sebum, dead skin cells and hormones. Kathleen Hou, The Cut, "How I Used Korean Skin Care to Treat My Hormonal Acne," 9 Mar. 2018 But here’s the problem: Aggressively getting rid of the natural sebum, or oil, in your skin can actually cause even more oil to be produced. Jenn Sinrich, SELF, "9 Habits That Could Be Making Your Oily Skin Even Oilier," 15 June 2018 The formula includes flaxseed oil, which allegedly absorbs sebum with the strength of a thousand oil blotting papers, while tea tree oil supposedly tightens pores. Shannon Barbour, The Cut, "This Primer Will Refine Pores and Provide Free Museum Tours to Kids," 24 May 2018 Because of bends in the hair, sebum from the scalp, a natural protectant, can’t travel down the length of the shaft. Crystal Martin, ajc, "What black women need to know about hair loss," 8 Apr. 2018 Don't Forget Your Lips Unlike the rest of your skin, your lips do not produce sebum (oil), which naturally contains vitamin E, a powerful antioxidant. Dr. Leslie Baumann, miamiherald, "What are the best sunscreens for swimming and sports? | Miami Herald," 22 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sebum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of sebum

circa 1860, in the meaning defined above

History and Etymology for sebum

Latin, tallow, grease

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Last Updated

21 Nov 2018

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The first known use of sebum was circa 1860

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se·​bum | \ˈsēb-əm \

Medical Definition of sebum 

: fatty lubricant matter secreted by sebaceous glands of the skin

More from Merriam-Webster on sebum Encyclopedia article about sebum

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to make faulty or ineffective

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