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1. Any of various instruments used to determine or specify colors, as by comparison with spectroscopic or visual standards.
2. An instrument that measures the concentration of a known constituent of a solution by comparison with colors of standard solutions of that constituent.

col′or·i·met′ric (-ər-ə-mĕt′rĭk) adj.
col′or·i·met′ri·cal·ly adv.
col′or·im′e·try n.


the measurement of the physical intensity of colors, as opposed to their subjective brightness. — colorimeter, n. — colorimetric, colorimetrical, adj.
See also: Color
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.colorimetry - quantitative chemical analysis by color using a colorimeter
quantitative analysis, quantitative chemical analysis - chemical analysis to determine the amounts of each element in the substance
References in periodicals archive ?
The freedles project sets out to develop a universal method for quantifying clumping of foliage in forests based on detailed 3d structure and spectral reflectance data.
Bartholomeus HM, Schaepman ME, Kooistra L, Stevens A, Hoogmoed WB, Spaargaren OSP (2008) Spectral reflectance based indices for soil organic carbon quantification.
Within this context, the objective of this study was to characterize the variability of spectral reflectance and temporal profiles of vegetation indices associated with nitrogen fertilization, crop cycle periods, and predominating weather conditions during the winter canola growing season in southern Brazil.
The obvious question that arises from this discussion is why the band was positioned outside the green peak of the vegetation spectral reflectance spectrum?
Their topics include digital philology between Alexander and Babel, taking a fresh start on categories of ancient Christian texts and writing materials, digital editing and the Greek New Testament, the "Thesaurus Gregorianus," an Internet database of Gregorian office antiphons, new technology for imaging unreadable manuscripts and other artifacts: integrated spectral reflectance transformation imaging, and digital resources of the Rabbinic literature: radical change with a click of the mouse.
Many researchers have attempted to estimate chlorophyll content using light reflectance and/or the vegetation index (VI) (ratio combining information contained in two spectral bands to derive vegetation greenness and canopy characteristics) because measurement of spectral reflectance provides a rapid, nondestructive method for pigment estimation (Thomas and Gausman, 1977; Sims and Gamon, 2002).
Estimation of severity level of wheat powdery mildew based on canopy spectral reflectance.
The resultant spectral reflectance of a metal film having an island structure (film composed of small metal particles) is different from that of bulk, and therefore, the film shows a unique color tone.
The implementation of the physical relation between spectral reflectance and light attenuation is the base of extracting information from multispectral satellite imagery over water bodies.
Third, the soil moisture was altered by uniformly spraying the sample 17 times with water, and the spectral reflectance and weight of each sample were measured after each sample was permeated completely by water.
Labcell has introduced the Decagon Devices SRS Spectral Reflectance Sensors for measuring NDVI (normalised differential vegetation index) and PRI (photochemical reflectance index) at the plot or plant stand scale.

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