| chemoserotherapy | An obsolete treatment of disease with a combination of drugs and serum. (05 Mar 2000) |
|---|---|
| chemosis | Oedema of the bulbar conjunctiva forming a swelling around the iris of the eye. (27 Sep 1997) |
| chemosmosis | Chemical reaction between substances initially separated by a membrane. Origin: chem-+ G. Osmos, a thrusting, an impulsion (05 Mar 2000) |
| chemostat | Apparatus for maintaining a bacterial population in the exponential phase of growth by regulating the input of a rate limiting nutrient and the removal of medium and cells. (18 Nov 1997) |
| chemosterilant | A chemical for controlling insect populations which prevents them from reproducing without killing them or changing their mating behaviours. Compare: pesticide. (09 Oct 1997) |
| chemosterilants | Chemical compounds the ingestion of which causes sterility of an organism. Such compounds have been used as a means of controlling various insects and other pests by inducing sterility in the male. (12 Dec 1998) |
| chemosurgery | Excision of diseased tissue after it has been fixed in situ by chemical means. (05 Mar 2000) |
| chemosynthesis | The use of inorganic substances such as carbon dioxide to make carbohydrates from the energy released by chemical reactions. Compare: photosynthesis. (09 Oct 1997) |
| chemotactic | A response of motile cells or organisms in which the direction of movement is affected by the gradient of a diffusible substance. Differs from chemokinesis in that the gradient alters probability of motion in one direction only, rather than rate or frequency of random motion. (18 Nov 1997) |
| chemotactic factors | Chemical substances that attract or repel cells or organisms. The concept denotes especially those factors released as a result of tissue injury, invasion, or immunologic activity, that attract leukocytes, macrophages, or other cells to the site of infection or insult. (12 Dec 1998) |
| chemotactic factors, eosinophil | Cytotaxins liberated from normal or invading cells that specifically attract eosinophils; they may be complement fragments, lymphokines, neutrophil products, histamine or other; the best known is the tetrapeptide ecf-a, released mainly by mast cells. (12 Dec 1998) |
| chemotactic factors, macrophage | Cytotaxins liberated from normal or invading cells that specifically attract macrophages. They may be lymphokines, products of antigen, antibody and complement interactions or other. (12 Dec 1998) |
| chemotactic protein methylesterase | <enzyme> Demethylates methyl-accepting chemotaxis proteins Registry number: EC 3.1.1.- Synonym: chemotactic methylesterase, carboxymethylesterase of chemotaxis, cheb methylesterase (26 Jun 1999) |
| chemotaxis | A response of motile cells or organisms in which the direction of movement is affected by the gradient of a diffusible substance. Differs from chemokinesis in that the gradient alters probability of motion in one direction only, rather than rate or frequency of random motion. (18 Nov 1997) |
| chemotaxis methyltransferase | <enzyme> Methylates methyl-accepting chemotaxis proteins when added to permeability cells; see also record for methyl-accepting chemotaxis proteins Registry number: EC 2.1.1.- Synonym: chemotaxis methyltransferase II, cher protein, frzf gene product (26 Jun 1999) |