noun Physiology.
the fatty secretion of the sebaceous glands.

1700–10; < Latin sēbum tallow, grease Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To sebum
World English Dictionary
sebum (ˈsiːbəm)
the oily secretion of the sebaceous glands that acts as a lubricant for the hair and skin and provides some protection against bacteria
[C19: from New Latin, from Latin: tallow]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

sebum se·bum (sē'bəm)
The semifluid secretion of the sebaceous glands, consisting chiefly of fat, keratin, and cellular material.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
sebum   (sē'bəm)  Pronunciation Key 
The fatty substance secreted by the sebaceous glands of mammals that protects and lubricates the skin and hair.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences for sebum
When the skin produces excessive sebum, it becomes heavy and thick in texture.
Related Words
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature