surfactant

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EtymologyEdit

surface-active agent

PronunciationEdit

NounEdit

surfactant (plural surfactants)

  1. (chemistry) A surface active agent, or wetting agent, capable of reducing the surface tension of a liquid; typically organic compounds having a hydrophilic "head" and a hydrophobic "tail".
  2. (biochemistry) A lipoprotein in the tissues of the lung that reduces surface tension and permits more efficient gas transport.

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