| couple | To copulate; to perform coitus; said especially of the lower animals. (05 Mar 2000) |
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| redox | Contraction of oxidation-reduction. See: oxidation-reduction potential. (05 Mar 2000) |
| redox electrode | An electrode capable of measuring oxidation-reduction potential. See: quinhydrone electrode. Synonym: redox electrode. (05 Mar 2000) |
| redox indicator | A substance that undergoes a definite colour change at a specific oxidation potential. Synonym: redox indicator. (05 Mar 2000) |
| redox potential | <chemistry> The reducing/oxidizing power of a system measured by the potential at a hydrogen electrode. (18 Nov 1997) |
| redox reaction | <chemistry> A reaction in which one or more electrons are transferred. (09 Jan 1998) |
| redox system | <enzyme> An enzyme system in the tissues by which oxidation and reduction proceed simultaneously through the transference of hydrogen or of one or more electrons from one metabolite to another. See: oxidation-reduction. Synonym: redox system. (05 Mar 2000) |
| vaccines, conjugate | Semisynthetic vaccines consisting of polysaccharide antigens from microorganisms attached to protein carrier molecules. The carrier protein is recognised by macrophages and T-cells thus enhancing immunity. Conjugate vaccines induce antibody formation in people not responsive to polysaccharide alone, induce higher levels of antibody, and show a booster response on repeated injection. (12 Dec 1998) |
| wheat germ agglutinin-horseradish peroxidase conjugate | <chemical> The lectin wheatgerm agglutinin conjugated to the enzyme horseradish peroxidase. It is widely used for tracing neural pathways. Pharmacological action: molecular probes. (12 Dec 1998) |
| conjugate | Paired together. In chemistry, this refers to an acid and a base which can convert to each other by the gain or loss of a proton (a hydrogen nucleus), which together are called a conjugate acid-base pair. It can also refer to two liquids in equilibrium with each other. In mycology (the study of fungi), this refers to a dikaryon with two haploid nuclei in it. (09 Oct 1997) |
| conjugate acid | The protonated compound of two compounds that differ in structure only by the presence of the labile proton. (05 Mar 2000) |
| conjugate acid-base pair | In prototonic solvents (e.g., H2O, NH3, acetic acid), two molecular species differing only in the presence or absence of a hydrogen ion (e.g., carbonic acid/bicarbonate ion or ammonium ion/ammonia); the basis of buffer action. (05 Mar 2000) |
| conjugate axis | Distance from the promontory of the sacrum to the upper posterior edge of the pubic symphysis. Synonym: anteroposterior diameter of the pelvic inlet, conjugata vera, conjugate axis, conjugate diameter of pelvic inlet, diameter mediana, internal conjugate, true conjugate. (05 Mar 2000) |
| conjugate deviation of the eyes | Rotation of the eyes equally and simultaneously in the same direction, as occurs normally, a condition in which both eyes are turned to the same side as a result of either paralysis or muscular spasm. (05 Mar 2000) |
| conjugate diameter of pelvic inlet | Distance from the promontory of the sacrum to the upper posterior edge of the pubic symphysis. Synonym: anteroposterior diameter of the pelvic inlet, conjugata vera, conjugate axis, conjugate diameter of pelvic inlet, diameter mediana, internal conjugate, true conjugate. (05 Mar 2000) |