Physics.
the mass of a body as measured when the body is at rest relative to an observer, an inherent property of the body. Cf. relativistic mass .
[ 1910-15 ]
Physics.
the mass of a body as measured when the body is at rest relative to an observer, an inherent property of the body. Cf. relativistic mass .
[ 1910-15 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012