noun
: a physical constant of wide application and frequent occurrence in physical formulas
the speed of light, c, the electronic charge, e, and the Planck constant, h, are universal constants
noun
: a physical constant of wide application and frequent occurrence in physical formulas
the speed of light, c, the electronic charge, e, and the Planck constant, h, are universal constants
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012