Definition of Sebum

1. Noun. The oily secretion of the sebaceous glands; with perspiration it moistens and protects the skin.

Generic synonyms: Secretion
Specialized synonyms: Smegma
Derivative terms: Sebaceous

Definition of Sebum

1. Noun. (physiology) A thick oily substance, secreted by the sebaceous glands of the skin, that consists of fat, keratin and cellular debris. ¹

¹ Source:

Definition of Sebum

1. a fatty matter secreted by certain glands of the skin [n -S]

Medical Definition of Sebum

1. A thick substance that is secreted by sebaceous glands that consists of fat and cellular debris. (27 Sep 1997)

Sebum Pictures

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Lexicographical Neighbors of Sebum

seborrheic dermatitis
seborrheic dermatosis
seborrheic eczema
seborrheic keratosis
seborrheic verruca
seborrheic wart
seborrhoea adiposa
seborrhoea capitis
seborrhoea corporis
seborrhoea furfuracea
seborrhoea nigra
seborrhoea sicca
sebum (current term)
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Literary usage of Sebum

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Text-book of Chemical Physiology and Pathology by William Dobinson Halliburton (1891)
"THE sebum When freshly secreted, the sebum is an oily substance, which seta, ... Other situations where large quantities of sebum, or substances like it, ..."

2. Hand-book of Skin Diseases by Isidor Neumann (1872)
"By comedones we understand the plugs of sebum which fill and distend the ducts of the sebaceous glands. The mode of production of comedo is the following: ..."

3. A Practical treatise on diseases of the skin by John Vietch Shoemaker (1909)
"The sebaceous matter, or sebum, is a semi-fluid material reted by the sebaceous glands. It is composed of free fat, fat-cells, ..."

4. A Text-book of Physiological Chemistry: For Students of Medicine and Physicians by Charles Edmund Simon (1904)
"The sebum.—The sebum is the specific secretory product of the sebaceous glands, and serves the purpose of a lubricant. Amounts sufficient for analytical ..."

5. Roman Antiquities by Alexander Adam, John Richardson Major (1835)
"... vel sebum), Serf. ibid. et JEn. i. 727. Val. Max. in. 6. 4. Varr. de Vit. Pop. R. As torches were used both at funerals and marriages, ..."

6. Diseases of the skin: Their Symptomatology, Etiology and Diagnosis, with by Henry M. Dearborn (1903)
"sebum.—The secretion of the sebaceous glands is a semi-fluid fat, which is insensibly discharged from the sebaceous glands upon the skin, ..."

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