Share this entry

Share this page


Line breaks: sebum
Pronunciation: /ˈsiːbəm

Definition of sebum in English:


[mass noun]
An oily secretion of the sebaceous glands.
Example sentences
  • Testosterone causes excessive sebum to be secreted from the skin's sebaceous glands.
  • The glands remain immature until puberty, and it is the secretion of sebum that is associated with pubertal acne.
  • The oily sebum rises up through the hair follicle, providing lubrication for your skin and hair.


late 19th century: modern Latin, from Latin sebum 'grease'.

Definition of sebum in:

Share this entry

Share this page


What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day glen
Pronunciation: ɡlɛn
a narrow valley, especially in Scotland or Ireland