English

Alternative forms

• daltonism

Noun

Daltonism ‎(uncountable)

1. (medicine, pathology) Inability or defective ability to perceive or distinguish certain colors, especially red-green color blindness.
   • 2002, Richard Davies, Descartes: Belief, Scepticism and Virtue, page 25,

     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.

   • 2011, Gordon Plant, James Acheson, Charles Clarke, Elizabeth Graham, Robin Howard, Simon Shorvon, 13: Neuro-Opthalmology, Charles Clarke, Robin Howard, Martin Rossor, Simon D. Shorvon (editors), Neurology: A Queen Square Textbook, unnumbered page,

     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.

   • 2013, Sevasti Trubeta, Physical Anthropology, Race and Eugenics in Greece (1880s–1970s), page 109,

     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.

2. Achromatopsia.

Synonyms

• (inability or defective ability to perceive or distinguish certain colors): color blindness, dichromatism

Hypernyms

• (inability or defective ability to perceive color): achromatism, achromatopia, achromatopsia

Related terms

• Daltonian
• Daltonic
• daltonic

Translations

References

• Daltonism in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913
• Dorland's Pocket Medical Dictionary, 22nd edition, W. B. Saunders, 1977

English

Noun

daltonism ‎(uncountable)

1. Alternative letter-case form of Daltonism