See Also: Young-Helmholtz theory of colour vision(medicine)
Helmholtz theory of colour vision(medicine)
Young-Helmholtz(dictionary)
Helmholtz theory of hearing(medicine)
Helmholtz theory of accommodation(medicine)
Helmholtz-Gibbs theory(medicine)
sixth 1, adjective(dictionary)
Hering's theory of colour vision(medicine)
theory of medicine(medicine)
young 1, adjective(dictionary)

Young-Helmholtz theory of colour vision (medicine) and sixth 1, adjective (oh)


Young-Helmholtz theory of colour vision (medicine)


Young-Helmholtz theory of colour vision


A theory that there are three colour-perceiving elements in the retina: red, green, and blue. Perception of Other colours arises from the combined stimulation of these elements; deficiency or absence of any one of these elements results in inability to perceive that colour and a misperception of any Other colour of which it forms a part.

Synonym: Helmholtz theory of colour vision.


sixth 1, adjective (oh)



coming after five Other things in a series
::her sixth birthday
::the sixth century
-- sixth pron
::Let's have dinner on the sixth (=the sixth day of the month) .