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D________
Definitions
An inability or defective ability to perceive or distinguish certain colors, especially red-green color blindness.
Word origin
From Dalton + -ism. Named after John Dalton (1766–1844), who suffered from the condition and conducted early research on it.
Used in a sentence
“A person with Daltonism may be said to lack a discriminatory power that others have: his perceptions of red and green are, as such, not to be relied on.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer0 curated clues
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