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Definition of "sebum" []

  • The semifluid secretion of the sebaceous glands, consisting chiefly of fat, keratin, and cellular material. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "sebum" in a sentence
  • "Besides sprouting up hairs that sense things, your skin lubricates itself with oils we call sebum produced by sebaceous glands and also absorbs certain medications and hormones."
  • "The condition is caused by excess secretion of a natural oil called sebum, which is produced by the sebaceous glands."
  • "They throw off a secretion known as sebum, which is made up principally of dead cells that have undergone fatty degeneration and of other debris."