GlossariesGCSE GlossariesGCSE Biology GlossaryAntiseptic

Antiseptic - GCSE Biology Definition

Reviewed by: Lára Marie McIvor

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An antiseptic is a chemical substance applied to living tissues, such as skin, to kill or prevent the growth of harmful microorganisms and reduce the risk of infection. Antiseptics are important in healthcare and hygiene because they help keep wounds, surgical areas, and hands free from pathogens that could cause disease. Unlike antibiotics, which are taken internally to treat infections, antiseptics are used externally. Examples include iodine, alcohol, and hydrogen peroxide. Understanding the role of antiseptics is important in GCSE Biology when studying health, disease prevention, and the body’s defence mechanisms.

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Lára Marie McIvor

Reviewer: Lára Marie McIvor

Expertise: Biology, Psychology & Sociology Subject Lead

Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.

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