sebum

American  

[see-buhm] / ˈsi bəm /

noun

Physiology.

1. the fatty secretion of the sebaceous glands.

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sebum British  

/ 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

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sebum Scientific  

/ sē′bəm /

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

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Etymology

Origin of sebum

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

Example Sentences

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

From Salon • Jan. 25, 2025

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

From Science Daily • Nov. 20, 2024

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 • Mar. 21, 2024

People who produce less sebum can get away with showering less.

From National Geographic • Aug. 22, 2023

The secretions and excretions are perspiration and sebum.

From Maintaining Health Formerly Health and Efficiency by Alsaker, R. L.