kaˈläsəd.ē, kə-, -ətē, -i noun
( -es )
Etymology: Middle French callosité, from Latin callositas, from callosus + -itas -ity
1. : the condition or quality of being callous: as
a. : abnormal hardness and thickness (as of the skin)
b. : lack of feeling or capacity for emotion
2. : a hard or thickened area or protuberance especially on the skin or on the bark of a plant : callus