yaws

[African, yaw, a raspberry.] Frambesia, plan, an infectious disease of the tropics, marked by febrile disturbances, rheumatic pains, and an eruption of aggregated rounded or flattened tubercles capped with a caseous crust the specific organism is believed to be Treponema per tenue '(SpiroclKBia per tenuis). guin'ea-com y., a form in which the lesions resemble grains of Indian com, or maize, ring'worm y., a circular disposition of the eruption in yaws.