Physics.
any radiation, as a stream of alpha particles or x-rays, that produces ionization as it passes through a medium.
[ 1900-05 ]
Physics.
any radiation, as a stream of alpha particles or x-rays, that produces ionization as it passes through a medium.
[ 1900-05 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012