Young–Helmholtzn.

Brit.

/ˌjʌŋˈhɛlmhɒlts/,

/ˌjʌŋˈhɛlmhəʊlts/, U.S.

/ˌjəŋˈhɛlmˌ(h)oʊlts/

Origin: From proper names. Etymons: proper names Young, Helmholtz.

Etymology: < the names of Thomas Young (see Young's modulus n.) and H. L. F. von Helmholtz (see Helmholtz n.).

Physiology.

attributive. Designating the theory that in the eye there are receptors of three types, each sensitive to a particular range of visible light (in humans centred on red, green, and blue), and that every colour sensation is due to the stimulation of these in different proportions.

ΘΚΠ

the world > life > the body > study of body > study of sense organs > [adjective] > eye

Young–Helmholtz1878

1878 Amer. Jrnl. Med. Sci. 76 229 According to the Young-Helmholtz theory..there are retinal elements for each of the three primary colours.

1881 Trans. Kansas Acad. Sci. 1879–80 7 33 The advocates of the Young-Helmholtz hypothesis hold..to three kinds of color-blindness.

1960 T. H. Waterman Physiol. Crustacea I. i. 47 Three hue-discriminating receptor types are consistent with the Young-Helmholtz trichromatic theory of color vision.

2013 B. R. Hergenhahn Introd. Hist. Psychol. viii. 229/1 The current view is that the Young–Helmholtz theory is correct in that there are retinal cells sensitive to red, green and blue.

This entry has been updated (OED Third Edition, June 2015; most recently modified version published online December 2021).

单词	young–helmholtz
释义	Young–Helmholtzn. Brit. /ˌjʌŋˈhɛlmhɒlts/, /ˌjʌŋˈhɛlmhəʊlts/, U.S. /ˌjəŋˈhɛlmˌ(h)oʊlts/ Origin: From proper names. Etymons: proper names Young, Helmholtz. Etymology: < the names of Thomas Young (see Young's modulus n.) and H. L. F. von Helmholtz (see Helmholtz n.). Physiology. attributive. Designating the theory that in the eye there are receptors of three types, each sensitive to a particular range of visible light (in humans centred on red, green, and blue), and that every colour sensation is due to the stimulation of these in different proportions. ΘΚΠ the world > life > the body > study of body > study of sense organs > [adjective] > eye Young–Helmholtz1878 1878 Amer. Jrnl. Med. Sci. 76 229 According to the Young-Helmholtz theory..there are retinal elements for each of the three primary colours. 1881 Trans. Kansas Acad. Sci. 1879–80 7 33 The advocates of the Young-Helmholtz hypothesis hold..to three kinds of color-blindness. 1960 T. H. Waterman Physiol. Crustacea I. i. 47 Three hue-discriminating receptor types are consistent with the Young-Helmholtz trichromatic theory of color vision. 2013 B. R. Hergenhahn Introd. Hist. Psychol. viii. 229/1 The current view is that the Young–Helmholtz theory is correct in that there are retinal cells sensitive to red, green and blue. This entry has been updated (OED Third Edition, June 2015; most recently modified version published online December 2021). < n.1878
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