Normal colour vision; the ability to perceive the three primary colours. ... Origin: tri-+ G. Chroma, colour, + opsis, vision ... (05 Mar 2000) ... 
Type: Term Pronunciation: trī-krō′mă-top′sē-ă Definitions: 1. Normal color vision; the ability to perceive the three primary colors.
trichromatopsia The ability to see three primary colors.