| cationic | Referring to positively charged ions and their properties. (05 Mar 2000) |
|---|---|
| cationic detergents | Detergent's, such as the amine salts or quaternary ammonium or pyridinium compounds of long-chain fatty acids, that have positively charged groups attached to the larger hydrophobic portions. (05 Mar 2000) |
| cationic protein | <biochemistry> Proteins of azurophil granules of neutrophils, rich in arginine. A chymotrypsin like protease found in azurophil granules is also very cationic as is cathepsin G and neutrophil elastase. Eosinophil cationic protein (21 kD) is particularly important because it damages schistosomula in vitro. (16 Mar 1998) |
| nonionic surfactant | <chemistry> A surfactant without a charged moiety. (05 Mar 2000) |
| 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 cot death. (18 Nov 1997) |
| surfactant subtype convertase | <enzyme> Converts surfactant heavy subtype to light subtype; inhibited by many serine proteinase inhibitors Registry number: EC 3.4.21.- Synonym: pst-convertase (26 Jun 1999) |
| eosinophil cationic protein | <protein> Arginine rich protein (21 kD) in granules of eosinophils, that damages schistosomula in vitro. Not the same as the MBP (major basic protein) of the granules. (18 Nov 1997) |
| zwitterionic surfactant | A dipolar surfactant. (05 Mar 2000) |