🇵🇹Portuguese Source WordCode: PT

daltonismo

Pronunciation / Transliteration: /dal.toˈniz.mu/

🇬🇧 Direct English Meaning:
Color blindness/ˈkʌl.ɚ ˌblaɪnd.nəs/
nounCEFR B2 (Upper)Top #14500 frequency
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🇵🇹 Example Sentence in Portuguese:

"O daltonismo afeta a percepção das cores."

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A decreased ability to see color or perceive color differences, usually of genetic origin.

    "His color blindness made it difficult for him to distinguish between red and green traffic lights."
  2. 2

    The inability to perceive any colors at all, seeing the world only in shades of gray (achromatopsia).

    "Complete color blindness is an extremely rare condition affecting roughly one in thirty thousand people."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The term combines the English words 'color' (derived from Latin 'color') and 'blindness' (from Old English 'blindnes'). It emerged in modern scientific terminology during the 18th and 19th centuries, notably influenced by chemist John Dalton's self-investigation of his own vision deficiency.

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