Look up: surfactant

1. 
   Surfactant
   From SURFace ACTive AgeNT. A substance which prefers to exist at the boundary between two other substances - for example, detergents have one end highly soluble in greasy, non-polar susbtances and one end soluble in water. Sodium dodecyl sulfate is a common surfactant. See also emulsifier.
   Found on http://www.kcpc.usyd.edu.au/discovery/gl
   
   
2. 
   Surfactant
   A detergent compound that promotes lathering.
   Found on http://www.epa.gov/OCEPAterms/
   
   
3. 
   Surfactant
   Abbreviated form of 'surface-active agent', a material (eg. wetting agent, emulsifier spreader) affecting surface tension by reducing inter-facial tension. Used to enhance surface retention and penetration of pesticides. There are three classes of surfactants, cationic, anionic and non-ionic and compounds belonging to the last two groups are most commonly used as herbicide adjuvants.
   Found on http://www.pestmanagement.co.uk/lib/glos
   
   
4. 
   surfactant
   a soluble compound that concentrates on the surface boundary between two substances such as oil and water and reduces the surface tension between the substances. The use of surfactants permits the thorough surface contact or mixing of substances that ordinarily remain separate. Surfactants are used in the petroleum industry as additives to drilling mud and to water during chemical flooding. See micellar-polymer flooding; surfactant mud
   Found on http://www.workover.co.uk/og/s.htm
   
   
5. 
   Surfactant
   A material that spreads along a surface, changing the properties of the surface.An example is soap.Soap spreads over a water surface and lowers its surface tension.
   Found on http://www.diracdelta.co.uk/science/sour
   
   
6. 
   Surfactant
   A surface-active agent; one that accumulates at the interface between two liquids and modifies their surface properties. An example would include the sterate ion.
   Found on http://www.ch.ic.ac.uk/vchemlib/mol/glos
   
   
7. 
   surfactant
   A material that spreads along a surface, changing the properties of the surface. For example, soap spreads over a water surface and lowers its surface tension.
   Found on http://antoine.frostburg.edu/chem/senese
   
   
8. 
   Surfactant
   a surface-active substance, such as a detergent or soap, that lowers the surface tension of a solvent (usually water).
   Found on http://www.chemicalglossary.net/definiti
   
   
9. 
   Surfactant
   A surface-active agent; one that accumulates at the interface between two liquids and modifies their surface properties. An example would include the sterate ion.
   Found on http://www.chemicalglossary.net/definiti
   
   
10. 
    Surfactant
    Surfactants are products used as detergents, dispersing agents, emulsifiers, wetting agents, foaming or antifoam agents, and solubilisers. They also constitute the raw material for the formulation of household products such as fabric detergents, shampoos,
    Found on http://www.chemicalglossary.net/definiti
    
    
11. 
    Surfactant
    The descriptor for any substance that lowers surface tension.
    Found on http://www.bio.hw.ac.uk/edintox/glossall
    
    
12. 
    surfactant
    A surface-active agent; usually an organic compound whose moleculei contain a hydrophilic group at one end and a lipophilic group at the other.
    Found on http://www.bacgroup.com/glossary/glossar
    
    
13. 
    Surfactant
    Surface-active ingredient that increases foaming, dispersing, spreading, emulsifying and wetting properties of a product
    Found on http://www.shine-ltd.com/glossary.html
    
    
14. 
    Surfactant
    Substance which when dissolved in a liquid, even in very small quantities, greatly reduces surface tension; surfactants used in detergents are part lipophile and part hydrophile, enabling the suspension of fat in water
    Found on http://www.porvairfiltration.com/filtrat
    
    
15. 
    surfactant
    A chemical added to water to lower its surface tension to improve wetting for cleaning. Surfactants are used in fluxes to reduce surface tension at the metal/solder interface to further promote solder wetting, especially when the assembly exits the solder wave. Where the flux is to be used in a foam fluxer, surfactants can also serve as foaming ag ...
    Found on http://www.ami.ac.uk/courses/topics/0100
    
    
16. 
    Surfactant
    a mixture of substances secreted by the air sacs of the lungs that prevents the air sacs from collapsing during exhalation
    Found on http://www.medichecks.com/glossary.cfm?l
    
    
17. 
    Surfactant
    Surfactant: A fluid secreted by the cells of the alveoli (the tiny air sacs in the lungs) that serves to reduce the surface tension of pulmonary fluids; surfactant contributes to the elastic properties of pulmonary tissue. In more technical terms, a surfactant is a surface active agent, the best known example being the lung surfactant that is produ ...
    Found on http://www.medterms.com/script/main/art.
    
    
18. 
    Surfactant
    A detergent compound that promotes lathering.
    Found on http://www.dlservicesinc.com/Terminology
    
    
19. 
    surfactant
    A surface-active compound; the best known example of which is the lung surfactant that renders the alveolar surfaces hydrophobic and prevents the lung filling with water by capillary action. The lung surfactant is produced just at parturition, and it has often been speculated that deficiencies in surfactant metabolism might cause cot death.
    Found on
    
    
20. 
    surfactant
    <physiology> A surface active agent, the best known example of which is the lung surfactant that renders the alveolar surfaces hydrophobic and prevents the lung filling with water by capillary action. ... The lung surfactant is produced just at parturition and it has often been speculated that deficiencies in surfactant metabolism might cause ...
    Found on http://www.mondofacto.com/facts/dictiona
    
    
21. 
    Surfactant
    : `This article is about surfactants in general. For the compound produced by alveolar cells, see pulmonary surfactant.` `Surfactants`, also known as `tensides`, are wetting agents that lower the surface tension of a liquid, allowing easier spreading, and lower the interfacial tension between two liquids.
    Found on http://en.wikipedia.org/wiki/Surfactant
    
    
22. 
    surfactant
    (sәr-fak´tәnt) surface-active agent. In the physiology of the lungs, a mixture of phospholipids (primarily lecithin and sphingomyelin) that is secreted into the alveoli and air passages and reduces the surface tension of fluids in the lungs to make lung tissue more elastic. A synthetic surfactant is ...
    Found on http://www.mercksource.com/pp/us/cns/cns
    
    
23. 
    surfactant
    A surface-active agent; usually an organic compound whose moleculei contain a hydrophilic group at one end and a lipophilic group at the other
    Found on http://www.corrosionsource.com/handbook/
    
    
24. 
    Surfactant
    A mixture of fat and protein that is found in the lungs that helps to keep them open and expanded. Surfactant is produced around the 34th week of pregnancy and lines the surface of the air sacs, where it lowers the surface tension and allows the air sacs to remain open throughout the respiratory cycle. Premature infants often lack adequate amount...
    Found on http://www.pregnology.com/AZ/S/7