"ˌ noun
Etymology: phot- + pigment
: a pigment (as chlorophyll or a compound in the retina) that undergoes a physical or chemical change under the action of light
"ˌ noun
Etymology: phot- + pigment
: a pigment (as chlorophyll or a compound in the retina) that undergoes a physical or chemical change under the action of light
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012