lepothrix 1. A condition in which the shaft of the hair is encased in hardened, scaly, sebaceous matter. 2. A skin disorder in which masses of reddish, black, and yellow fungous material are found in nodular or diffuse distribution about the axillary or genital hair; usually seen in those who sweat freely. Found on http://www.wordinfo.info/words/index/info/view_unit/1167/