a specific type of color vision in which the individual can only perceive two (as opposed to three) primary colors. In most instances, this is blue and yellow. Also known as anomalous dichromasy. See also dichromatism.

ANOMALOUS DICHROMATISM: "The individual suffering with anomalous dichromatism had difficulty perceiving colors that did not originate with the primary colors blue and yellow."
Cite this page: N., Pam M.S., "ANOMALOUS DICHROMATISM," in, April 7, 2013, (accessed September 17, 2021).