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Daltonism

Overview page. Subjects: Psychology — Medicine and Health.

(protanopia) n. red-blindness: a defect in colour vision in which a person cannot distinguish between reds and greens. The term has been used to refer to colour blindness in general. J....

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Daltonism

Morton S. Freeman.

in A New Dictionary of Eponyms

January 1997; p ublished online January 2002 .

Reference Entry. Subjects: History of English. 212 words.

John Dalton (1766–1844) was the consummate scientist. His interests embraced research, theories, and experimentation.

Dalton was not permitted

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dalton

Donald Fenna.

in A Dictionary of Weights, Measures, and Units

January 2002; p ublished online January 2004 .

Reference Entry. Subjects: Numerical and Computational Mathematics. 27 words.

[J. Dalton; UK 1766–1844]

mass. Symbol D. Identically the atomic mass unit, used mainly for

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Dalton

in Who Was Who

P ublished online December 2007 .

Reference Entry. Subjects: Politics. 262 words.

PC 1940; MA Cambridge, DSc Lond.; DSc, Sydney; LLD Manchester; DCL Durham

Born 26 Aug. 1887; s of late Rev. Canon J. N. Dalton, KCVO, CMG; ...

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Daltonism

Overview page. Subjects: Psychology — Medicine and Health.

(protanopia) n. red-blindness: a defect in colour vision in which a person cannot distinguish between reds and greens. The term has been used to refer to colour blindness in general. J....

See overview in Oxford Index

dalton

Overview page. Subjects: Chemistry.

A unit equal to the mass of the hydrogen atom (1.67 × 10−24 g) and equal to 1.0000 on the atomic mass scale. The unit is named after John Dalton (1766–1844), who developed the atomic theory...

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Mary Dalton

Donald B. Gibson.

in The Concise Oxford Companion to African American Literature

January 2001 .

Reference Entry. Subjects: Literary Studies (African American Literature); History. 299 words.

In Richard Wright's Native Son, Mary Dalton is the daughter of the wealthy white Chicago realtor Mr. Dalton, who owns

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Mary Dalton

Donald B. Gibson.

in The Concise Oxford Companion to African American Literature

January 2001 .

Reference Entry. Subjects: History. 299 words.

In Richard Wright's Native Son, Mary Dalton is the daughter of the wealthy white Chicago realtor Mr. Dalton, who owns

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Dalton’s atomic theory

Richard Rennie.

in A Dictionary of Chemistry

January 2016; p ublished online January 2016 .

Reference Entry. Subjects: Chemistry. 90 words.

A theory of *chemical combination, first stated by John *Dalton in 1803. It involves the following

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John Dalton

Overview page. Subjects: Science and Mathematics — Arts and Humanities.

(1766–1844)

British chemist and physicist. In 1801 he formulated his law of partial pressures (see Dalton's law), but he is best remembered for Dalton's atomic theory, which he...

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Dalton, Charles

in Who Was Who

P ublished online December 2007 .

Reference Entry. Subjects: Military History; Warfare and Defence. 132 words.

Born St John, New Brunswick, 25 Sept. 1850; s of late Lt-Gen. Charles James Dalton; m his cousin, Isabella Dalton Norcliffe, Langton Hall, Malton, Yorkshire; ...

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