ALL meanings of cathode rays
cath·ode ray
C c - noun plural cathode rays a stream of electrons emitted from the surface of a cathode in a valve 3
- noun cathode rays streams of electrons projected from the surface of a cathode: cathode rays produce X-rays when they strike solids 3
- noun cathode rays a flow of electrons emanating from a cathode in a vacuum tube and focused into a narrow beam. 1