The Collaborative International Dictionary of English v.0.48:

Yaws \Yaws\, n. [African yaw a raspberry.] (Med.)
   A disease, occurring in the Antilles and in Africa,
   characterized by yellowish or reddish tumors, of a contagious
   character, which, in shape and appearance, often resemble
   currants, strawberries, or raspberries. There are several
   varieties of this disease, variously known as framboesia,
   pian, verrugas, and crab-yaws.
   [1913 Webster]

WordNet (r) 3.0 (2006):

framboesia
    n 1: an infectious tropical disease resembling syphilis in its
         early stages; marked by red skin eruptions and ulcerating
         lesions [syn: yaws, frambesia, framboesia]