Pronunciation: [sˈɛbəm] (IPA) 
Sebum is a term that refers to the oily substance secreted by the sebaceous glands in our skin. Phonetically, the word "sebum" is pronounced as /ˈsiːbəm/. It has two syllables and starts with the "s" sound, followed by a long "e" sound, then a "b" sound, and finally ends with an "m" sound. The spelling of this word is derived from the Latin word "sebum," meaning tallow or grease, which accurately describes the oily nature of this substance.
Sebum is a noun that refers to an oily, waxy substance secreted by the sebaceous glands present in the skin of mammals, including humans. It is composed of a mixture of triglycerides, fatty acids, cholesterol, and other lipid compounds. The main function of sebum is to lubricate and protect the skin and hair follicles.
Sebum is produced by the sebaceous glands, which are located in the dermis layer of the skin. These glands release sebum through small ducts that open into the hair follicles. Sebum plays a crucial role in maintaining the health of the skin, as it helps to keep it moisturized and flexible. It forms a thin, protective layer on the surface of the skin that prevents excess moisture loss and protects it from external factors such as environmental pollutants and microbial infections.
However, when the production of sebum becomes excessive, it can lead to oily skin and greasy hair. This condition, known as seborrhea, can result in acne, dandruff, and other skin and scalp issues. On the other hand, insufficient sebum production can cause dry skin, flakiness, and brittle hair.
Therefore, the regulation and balance of sebum production are essential for maintaining optimal skin and hair health. Various factors, including hormonal changes, genetic predisposition, and lifestyle habits, can influence the production of sebum.
The secretion of the sebaceous glands.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
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The word "sebum" comes from Latin. It is derived from the Latin word "sebaceus", meaning "fatty" or "greasy". "Sebaceus" itself originated from "sebum", which refers to the fatty substance produced by the sebaceous glands in the skin.
