intensity
in.ten.si.ty \in-'ten(t)-s*t-e-\ n 1: the quality or state of being intense; esp : extreme degree of s trength, force, or energy 2: the magnitude of force or energy per unit (as of surface, charge, or mas s) 3: SATURATION
Webster's English Dictionaryin.ten.si.ty \in-'ten(t)-s*t-e-\ n 1: the quality or state of being intense; esp : extreme degree of s trength, force, or energy 2: the magnitude of force or energy per unit (as of surface, charge, or mas s) 3: SATURATION