Source : Webster's Revised Unabridged Dictionary (1913)

Erythrochroism \E*ryth"ro*chro*ism\, n. [Gr. 'eryqro`s red + ?
   color.] (Zo["o]l.)
   An unusual redness, esp. in the plumage of birds, or hair of
   mammals, independently of age, sex, or season.