- the fatty secretion of the sebaceous glands.
Origin of sebum
First recorded in 1700–10, sebum is from the Latin word sēbum tallow, grease
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- 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
Word Origin and History for sebum
secretion of the sebaceous glands, 1728, from medical use of Latin sebum "sebum, suet, grease," probably related to sapo "soap" (see soap (n.)).
Online Etymology Dictionary, © 2010 Douglas Harper
- The semifluid secretion of the sebaceous glands, consisting chiefly of fat, keratin, and cellular material.
- The fatty substance secreted by the sebaceous glands of mammals that protects and lubricates the skin and hair.
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