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Definition: 'Surfactant'

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surfactant

Type: Term

Pronunciation: sŭr-fak′tănt

Definitions:
1. A surface-active agent, including substances commonly referred to as wetting agents, surface tension depressants, detergents, dispersing agents, emulsifiers, and quaternary ammonium antiseptics.
2. Those surface-active agents forming a monomolecular layer over pulmonary alveolar surfaces; lipoproteins, lecithins, and sphingomyelins that stabilize alveolar volume by reducing surface tension and altering the relationship between surface tension and surface area.

The definition information for surfactant is provided by Stedman's. You can search our medical dictionary here.

Stedman's, part of Lippincott Williams & Wilkins, provides a comprehensive line of health-science publications for healthcare professionals and medical students.

Medical Dictionary Copyright © 2006 Lippincott Williams & Wilkins. All rights reserved.







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