sebum

[see-buhm]

noun

Physiology.

1. the fatty secretion of the sebaceous glands.

sebum

/ ˈsiːbəm /

noun

1. the oily secretion of the sebaceous glands that acts as a lubricant for the hair and skin and provides some protection against bacteria

sebum

1. The fatty substance secreted by the sebaceous glands of mammals that protects and lubricates the skin and hair.

Word History and Origins

Origin of sebum¹

First recorded in 1700–10, sebum is from the Latin word sēbum tallow, grease

Word History and Origins

Origin of sebum¹

C19: from New Latin, from Latin: tallow

Example Sentences

It also closely resembles sebum, the oily substance that coats our skin and protects it from drying out.

From Salon

Skin properties such as sebum levels, moisture, and dryness all influence the composition of the microbiota.

From Science Daily

The differences in scent between young children and teens probably stem from puberty-driven changes in sweat and sebum production, the researchers said.

From New York Times

Our follicles are attached to sebaceous glands, which make oil called sebum to add moisture to the hair.

From National Geographic

But if sebum builds up, she said, it can cause problems.

From Seattle Times