Medical Dictionary


noun prot·anom·a·ly \-ə-lē\
plural prot·anom·a·lies

Medical Definition of PROTANOMALY

:  deficient color vision in which an abnormally large proportion of red is required to match the spectrum—compare deuteranomaly, trichromatism


How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears