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The semifluid secretion of the sebaceous glands, consisting chiefly of fat, keratin, and cellular material.
[Latin sēbum, tallow.]
(Anatomy) 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]
the fatty secretion of the sebaceous glands.
[1700–10; < Latin sēbum tallow, grease]
The fatty substance secreted by the sebaceous glands in the skin of mammals. It protects and lubricates the skin and hair.
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|Noun||1.||sebum - the oily secretion of the sebaceous glands; with perspiration it moistens and protects the skin|
secretion - a functionally specialized substance (especially one that is not a waste) released from a gland or cell
smegma - a white secretion of the sebaceous glands of the foreskin