daltonism
/ˈdɔːltənɪzəm/
Word Rarity
Very rare
Frequency: Zipf frequency 0.00 in modern English
12
Scrabble Score
9
Letters
3
Syllables
9
Unique Chars
Meaning
noun
An inability or defective ability to perceive or distinguish certain colors, especially red-green color blindness.
Uncountable
Example Sentences
- "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."
- "The Ishihara plates were developed for the assessment of congenital colour anomalies (Daltonism) and so there is considerable detail in the testing that is not relevant to optic nerve disease where the losses do not follow the specific patterns seen in Daltonism but show largely global losses."
- "The concern of Kosmetatos was not how affected individuals would manage to organize their lives taking the effects of Daltonism as given; rather, using the specific case of Daltonism, he suggested the bureaucratization and surveillance of humans by recording their health condition over long periods."
Etymology
From Dalton + -ism. Named after John Dalton (1766–1844), who suffered from the condition and conducted early research on it.
Word Breakdown
Regional Pronunciation
- British English: /ˈdɔːltənɪzəm/