Absence or loss of pigment in the hair. See also: canities.
[G. a- priv. + chrōma, color, + thrix, hair]
A term that is now rarely used in the working medical parlance for the absence or loss of pigment in hair.
Absence or loss of pigment in hair
loss or absence of pigment in hair. It may be complete or patchy, affect the length of the fiber or be in well-defined bands or speckled. Can be caused by nutritional deficiency, selective freezing, radiation or pressure. See also vitiligo, copper nutritional deficiency, snowflakes.