1. a green pigment derived from chlorophyll, used in dyes and as a food coloring
Usage: chemistry; also spelled chlorine in some contexts, though chlorin is the standard chemical term
2. any of various green porphyrin compounds found in plants and some bacteria
Usage: biochemistry; technical

Examples

• Chlorin is extracted from plant material for use in natural food colorings.
• The chemist studied chlorin compounds to understand photosynthesis better.
• Chlorin derivatives are used in some cosmetic and pharmaceutical applications.
• The green hue of chlorin makes it valuable in textile dyeing.
• Researchers isolated chlorin from algae samples in the laboratory.