Sebum

[Dianne]

The semifluid [secretion] of the [sebaceous] [glands], consisting chiefly of fat, keratin, and cellular material.

[Tina]

An oily secretion of the sebaceous glands.

[PussyCat]

sebum Latin, originally, hog fat, lard, fat less than ultimately from [Indo-European] root *sus pig, with related words like swine, sow, French suif ‘[tallow], candle fat,’ [suet], and the farmer’s common pig-call in many languages, suee-suee.