surfactant

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sur·fac·tant

 (sər-făk′tənt, sûr′făk′-)
n.
1. A surface-active substance.
2. A substance composed of lipoprotein that is secreted by the alveolar cells of the lung and serves to maintain the stability of pulmonary tissue by reducing the surface tension of fluids that coat the lung.

[surf(ace)-act(ive) + a(ge)nt.]

surfactant

(sɜːˈfæktənt)
n
(Chemistry) Also called: surface-active agent a substance, such as a detergent, that can reduce the surface tension of a liquid and thus allow it to foam or penetrate solids; a wetting agent
adj
(Chemistry) having the properties of a surfactant
[C20: surf(ace)-act(ive) a(ge)nt]

sur•fac•tant

(sərˈfæk tənt)

n.
any surface-active substance, as a detergent or a natural or artificial substance that coats the lungs and prevents them from collapsing.
[1945–50; surf(ace)-act(ive)a(ge)nt]

sur·fac·tant

(sər-făk′tənt)
1. A substance, such as detergent, that is added to a liquid to increase its ability to spread.
2. A substance produced by the tiny air-filled sacs of the lung that reduces the surface tension of the fluids coating the lung. Surfactant helps keep the tiny air sacs from collapsing during normal breathing.

surfactant

(surface active agent) A substance (for example a detergent) added to a liquid which can alter its spreading or wetting characteristics by lowering its surface tension.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.surfactant - a chemical agent capable of reducing the surface tension of a liquid in which it is dissolved
emulsifier - a surface-active agent that promotes the formation of an emulsion
chemical agent - an agent that produces chemical reactions
detergent - a surface-active chemical widely used in industry and laundering
Translations
tensioactiftensio-actif

surfactant

n (Chem) → Tensid nt

sur·fac·tant

n. surfactante, agente tensoactivo que modifica la tensión superficial de un líquido.

surfactant

n surfactante m
References in periodicals archive ?
Discovery Labs' technology platform includes a novel synthetic peptide-containing (KL4) surfactant, that is structurally similar to pulmonary surfactant, and proprietary drug delivery technologies being developed to enable efficient delivery of aerosolized KL4 surfactant.
As a consequence to the cellular damage and the alveolar flooding, pulmonary surfactant is inactivated.
Antigen-induced airway inflammation in atopic subjects generates dysfunction of pulmonary surfactant.
As a quick reminder, respiratory distress syndrome (RDS) of the newborn is the seventh most common cause of perinatal mortality in the United States, and it is caused by a deficiency of pulmonary surfactant at birth.
Discovery Labs' novel proprietary KL4 surfactant technology produces a synthetic, peptide-containing surfactant that is structurally similar to pulmonary surfactant and is being developed in liquid, lyophilized and aerosolized formulations.
Changes in pulmonary surfactant function and composition in bleomycin-induced pneumonitis and fibrosis.
Pulmonary surfactant in health and human lung diseases: state of the art.
The biochemists used the machine in order to analyze the effect of cigarette smoke on pulmonary surfactant the chemical compound that keeps air sacs in the lungs from sticking together each time air is exhaled--which the medical community in the late sixties considered a key to understanding a possible cause of emphysema.
Influence of Pulmonary Surfactant Protein Mimics on Model Lung Surfactant
It is during this stage that type II pneumocytes increase production of pulmonary surfactant Lung development continues for approximately eight years.