color index

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Related to Colour indices: Intrinsic color index

color index

An outmoded method of expressing the amount of hemoglobin present in each red cell.
See also: index


pl. indexes, indices [L.] the numerical ratio of measurement of any part in comparison with a fixed standard.

index case
the first case of a disease in a group to be brought to the attention of the clinician.
Color index
a publication of the Society of Dyers and Colorists and the American Association of Textile Chemists and Colorists, containing an extensive list of dyes and dye intermediates. Each chemically distinct compound is identified by a specific number, the CI number, avoiding the confusion of trivial names used for dyes in the dye industry. The Royal Horticultural Society, London, produces a similar document to aid in the identification of flower colors.
erythrocyte i's
see erythrocyte indices.
index Medicus
a monthly publication of the National Library of Medicine, in which the world's leading biomedical literature is indexed by author and subject.
opsonic index
a measure of opsonic activity determined by the ratio of the number of microorganisms phagocytized by normal leukocytes in the presence of serum from an animal infected by the microorganism, to the number phagocytized in serum from a normal animal.
phagocytic index
the average number of bacteria ingested per leukocyte of the patient's blood.
production index
a method of expressing production compared with a potential or target.
refractive index
the refractive power of a medium compared with that of air (assumed to be 1).
therapeutic index
originally, the ratio of the maximum tolerated dose to the minimum curative dose; now defined as the ratio of the median lethal dose (LD50) to the median effective dose (ED50). It is used in assessing the safety of a drug.
index Veterinarius
a periodic listing of all publications in the veterinary literature by the Commonwealth Agricultural Bureaux, United Kingdom. Also available on on-line data search.
vital index
the ratio of births to deaths within a given time in a population.
References in periodicals archive ?
However, the hue angle (h[degrees]) seems not to be a useful indicator for describing the colour change in maize tuwo processing as red-yellow-green colour indices are seldom applicable.
ii) Evans and Franzmeier (1988) developed 2 overall colour indices to reflect soil wetness and aeration characteristics: Cc as a Colour index depending solely on soil chromas, Cch depending on soil chromas and hues.
He recognised that the reddest stars are carbon stars, and from tabulated colour indices selected WZ Cas and its visual companion as having the greatest contrast of any pair, at least as far as magnitude 8.
In my colour-ranking catalogue of the reddest stars, that I had originally compiled going back to the 1980s, stars are ranked according to their colour indices, B-V.