also: ていしき
noun
coloration; coloring; color development
Technical term used in chemistry, biology, and materials science for the appearance or development of color, often as a result of a reaction or treatment.
この試薬は特定の金属イオンと反応して呈色する。
This reagent develops a color upon reacting with specific metal ions.
呈色反応の強さから濃度を測定した。
The concentration was measured from the intensity of the color reaction.
発色 is a more general term for color development or coloration, often used in photography, printing, and dyeing, while 呈色 is more specific to chemical or biological color reactions.
Compound of 呈 (present, exhibit) and 色 (color). The reading ていしょく is the standard on'yomi combination; ていしき is a rare alternative reading of the second character.