color blindness

noun

1. inability to distinguish one or several chromatic colors, independent of the capacity for distinguishing light and shade.
2. complete inability to distinguish colors of the spectrum, with all objects appearing as shades of gray, black, and white, varying only as to lightness and darkness; achromatopsia.

Word History and Origins

Origin of color blindness¹

First recorded in 1835–45

Example Sentences

In comparing notes with my Philosopher I am chagrined at my own color-blindness.

From Project Gutenberg

From the Stoelting Company you can obtain the Holmgren worsteds for studying color blindness.

From Project Gutenberg

Another visual defect of a different nature is known as partial color blindness.

From Project Gutenberg

In some employments color blindness in an employee would be fatal to many lives.

From Project Gutenberg

These contrasted cases are indeed convenient tests for color-blindness.

From Project Gutenberg