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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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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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Dalton’s atomic theory

Carl Schaschke.

in A Dictionary of Chemical Engineering

January 2014; p ublished online September 2014 .

Reference Entry. Subjects: Engineering and Technology. 91 words.

A theory of chemical combination first postulated in 1803 by British chemist and physicist John Dalton (1766–1844). It

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