centrad [L, centum, hundred] , 1. pertaining to a central direction, toward the center. 2. a unit of measure equal to one hundredth part of a radian. 3. a measure of the refractive strength of a prism.
centrad [L, centum, hundred] , 1. pertaining to a central direction, toward the center. 2. a unit of measure equal to one hundredth part of a radian. 3. a measure of the refractive strength of a prism.