11-Letter Words Starting: CHR

• a rare hard yellow green mineral consisting of beryllium aluminate in crystal form; used as a gemstone

• the chemical group that gives color to a molecule

• an accurate timer for recording time

• brightly colored beetle that feeds on plant leaves; larvae infest roots and stems

• in a habitual and longstanding manner

• in a slowly developing and long lasting manner

• Describing a process in which a black-and-white image is replaced by a coloured one.

• Containing or producing chromogen.

• The science of the measurement of time