DICHROMATISM

dichromacy, dichromatism, dichromatopsia, dichromia, dichromasy

(noun) a deficiency of color vision in which the person can match any given hue by mixing only two other wavelengths of light (as opposed to the three wavelengths needed by people with normal color vision)

Source: WordNet® 3.1


Etymology

Noun

dichromatism (countable and uncountable, plural dichromatisms)

The condition of being dichromatic

(pathology) A form of colourblindness in which only two of the three primary colours can be distinguished

(biology) The condition when male and female birds have different plumage colors.

Source: Wiktionary


Di*chro"ma*tism, n.

Definition: The state of being dichromatic.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

11 January 2025

COWBERRY

(noun) low evergreen shrub of high north temperate regions of Europe and Asia and America bearing red edible berries


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Coffee Trivia

Some 16th-century Italian clergymen tried to ban coffee because they believed it to be “satanic.” However, Pope Clement VII loved coffee so much that he lifted the ban and had coffee baptized in 1600.

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