Medical dictionary. 2011.
Rideal-Walker coefficient — The Rideal Walker coefficient is a figure expressing the disinfecting power of any substance and is obtained by dividing the figure indicating the degree of dilution of the disinfectant that kills a microorganism in a given time by that… … Wikipedia
Rideal-Walker test — Ri·de·al Walk·er test ri dē(ə)l wȯ kər n a test for determining the phenol coefficient esp. of a disinfectant Rideal Samuel (1863 1929), and Walker J. T. Ainslie (1868 1930) British chemists. Rideal taught chemistry and was an expert on the… … Medical dictionary
Rideal-Walker method — a method for calculating the phenol coefficient of a disinfectant; cultures of Salmonella enterica subsp. enterica serovar Typhi are incubated with serial dilutions of the test compound, with dilutions of phenol as standards. Samples are removed… … Medical dictionary
method — The mode or manner or orderly sequence of events of a process or procedure. SEE ALSO: fixative, operation, procedure, stain, technique. [G. methodos; fr. meta, after, + hodos, way] Abell Kendall m. a … Medical dictionary
coefficient — 1. The expression of the amount or degree of any quality possessed by a substance, or of the degree of physical or chemical change normally occurring in that substance under stated conditions. 2. The ratio or factor that relates a quantity… … Medical dictionary
Phenol coefficient — is a measure of the bactericidal activity of a chemical compound in relation to phenol. When listed numerically, the figure expressing the disinfecting power of a substance by relating it to the disinfecting power of phenol may be a function of… … Wikipedia
phenol coefficient — n a number relating the germicidal efficiency of a compound to phenol regarded as having an arbitrarily assigned value of 1 toward specified bacteria (as typhoid bacteria) under specified conditions * * * a measure of the bactericidal activity of … Medical dictionary
