| indicate | 1. To show the probable presence of existence or nature or course of: give fair evidence of: be a fairly certain sign or symptom of. 2. To demonstrate or suggest the probable necessity or advisability. (18 Nov 1997) |
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| indication | A circumstance which points to or shows the cause, pathology, treatment or issue of an attack of disease, that which points out, that which serves as a guide or warning. Origin: L. Indicatio (18 Nov 1997) |
| indicative | That indicates, that points out more or less exactly, that reveals fairly clearly. (18 Nov 1997) |
| indicator | An event, entity or condition that typically characterises a prescribed environment or situation, indicators determine or aid in determining whether or not certain stated circumstances exist or criteria are satisfied. (09 Oct 1997) |
| indicator dilution method | hamilton-Stewart method |
| indicator dilution techniques | Methods for assessing flow through a system by injection of a known quantity of an indicator, such as a dye, radionuclide, or chilled liquid, into the system and monitoring its concentration over time at a specific point in the system. (12 Dec 1998) |
| indicator organisms | Organisms that respond predictably to various environmental changes, and whose presence, or abundance, are used as indicators of environmental conditions. (09 Oct 1997) |
| indicator plant | Plant species indicating some specific characteristic of a certain locality. (09 Oct 1997) |
| indicator system | In in vitro immunological tests, a combination of reagents used to determine the degree to which immunological reagents have combined (e.g., sensitised erythrocytes in complement-fixation tests; enzyme and substrate in enzyme-linked immunosorbent assays). (05 Mar 2000) |
| indicator yellow | A compound formed in the bleaching of rhodopsin by light; it is chrome yellow at pH 3.3-4.0 and pale yellow at pH 9.0-10.0. (05 Mar 2000) |
| indicator-dilution curve | Graph of the serial concentrations (dilutions) of a dye, e.g., Evans blue, following its intravascular or intracardiac injection; useful in the diagnosis of congenital cardiac shunts, measurement of cardiac output, and detection of cardiovalvular incompetence. Synonym: indicator-dilution curve. (05 Mar 2000) |
| indicators and reagents | Substances used for the detection, identification, analysis, etc. Of chemical, biological, or pathologic processes or conditions. Indicators are substances that change in physical appearance, e.g., colour, at or approaching the endpoint of a chemical titration, e.g., on the passage between acidity and alkalinity. Reagents are substances used for the detection or determination of another substance by chemical or microscopical means, especially analysis. Types of reagents are precipitants, solvents, oxidisers, reducers, fluxes, and colourimetric reagents. (12 Dec 1998) |
| indicatrix | <microscopy> A three-dimensional construction of the optical relationships in a crystal. Radii proportional in length to either refractive index or velocity may be used to represent variations in those values throughout a crystal (or oriented polymer fibres and films). (05 Aug 1998) |
| indices | Alternative plural of index. (05 Mar 2000) |
| indicolite | <chemical> A variety of tourmaline of an indigo-blue colour. Origin: L. Indicum indigo: cf. F. Indicolithe. Source: Websters Dictionary (01 Mar 1998) |