Relating to or of the nature of colorimetry; an alternative form of colorimetric used in some technical contexts.
Extended form of 'colorimetric' with the suffix '-al,' creating a variant adjective form. Both forms exist in scientific literature.
Scientists sometimes prefer 'colorimetrical' in formal papers because it sounds more precise and established, even though 'colorimetric' is more common—it's a linguistic quirk where longer adjective forms sometimes sound more authoritative in academic writing.
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