I.
plural of yaw
present third singular of yaw
II. ˈyȯz noun plural but singular or plural in construction
Etymology: of Cariban origin; akin to Calinogo Yáya the disease
: an infectious contagious but not venereal tropical disease that is caused by a spirochete ( Treponema pertenue ) which cannot be distinguished morphologically from the syphilis spirochete ( T. pallidum ) and that is characterized by a primary ulcerating lesion on the skin followed by a secondary stage in which ulcers develop all over the body and by a third stage in which the bones are involved — called also frambesia ; compare bejel