Colourimeter vs. Colorimeter

Colourimeternoun

alternative spelling of colorimeter

Colorimeternoun

Any of various instruments designed to determine the color of something, by comparison with standard colors or by spectroscopy.

Colorimeternoun

(analytical chemistry) An analytic instrument that estimates the concentration of a substance in a sample by measuring its color against the solution's complimentary color.

Colorimeternoun

An instrument for measuring the depth of the color of anything, especially of a liquid, by comparison with a standard liquid.

Colorimeternoun

a measuring instrument used in colorimetric analysis to determine the quantity of a substance from the color it yields with specific reagents