1. plural of achromat: optical lenses designed to reduce chromatic aberration by bringing different wavelengths of light to the same focus
Usage: optics; technical
2. plural of achromat: people who have achromatopsia, a condition causing complete color blindness
Usage: medical; rare

Examples

• The telescope uses high-quality achromats to produce sharp images.
• Modern achromats significantly reduce color fringing in photographs.
• The camera lens contains multiple achromats for better color correction.
• Achromats see the world only in shades of gray.
• The study included twelve achromats and twenty people with normal color vision.