protanomal Ophthalm.
(prəʊtəˈnɒməl)
[ad. G. protanomale (W. A. Nagel 1907, in Zeitschr. f. Psychol. und Physiol. d. Sinnesorgane: Abt. II XLII. 67), f. Gr. πρωτ- prot- + G. anomal anomalous.]
A person with protanomaly.
| 1915 J. H. Parsons Introd. Study Colour Vision ii. iii. 183 Of the partial protanopes (protanomal, Nagel) Donders and König do not record any case, v. Kries one only, whereas Nagel, Guttman, and Abney and Watson record a considerable number. 1973 Jrnl. Optical Soc. Amer. LXIII. 236/1 In Fig. 2, the red primary is assigned a value of 637 nm for normals and deuteranomals, and 629 nm for protanomals. |
Hence protaˈnomalous a., having protanomaly; also absol.
| 1911 Amer. Jrnl. Psychol. XXII. 370 It is now customary..to distinguish two groups of anomalous trichromates, upon the analogy of the two groups of dichromates,—the red-anomalous or protanomalous trichromates, whose sensitiveness to red is below normal, and the green-anomalous or deuteranomalous trichromates, whose sensitiveness to green is below normal. 1938 [see protanomaly]. 1965 Science 9 July 186/1 The protanomalous subject can match all colors of the spectrum with mixtures of three hues but requires more red in each mixture than the normal subject. 1975 Sci. Amer. Mar. 172/3 Some have considered that the protanomalous need more red in their mixture because, although they have normal cone pigments, the red signals are too weak. |