Definition of squalene in English:

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Pronunciation: /ˈskwālēn/


An oily liquid hydrocarbon that occurs in shark liver oil and human sebum, and is a metabolic precursor of sterols.
  • A triterpenoid; chemical formula: C30H50.
Example sentences
  • Sebum is produced in the sebaceous glands and consists of glycerides, wax esters, squalene, and cholesterol.
  • Approximately 80% of the cholesterol in your blood is synthesized in your liver from squalene.
  • Human sebaceous glands secrete a lipid mixture of mainly triglycerides, wax esters, free fatty acids, and squalene.


Early 20th century: from Latin squalus (see squalamine) + -ene.

For editors and proofreaders

Syllabification: squa·lene

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