cathode ray (English, noun)
expansion: cathode ray (plural cathode rays)
Senses:
topics: business
electrical-engineering
electricity
electromagnetism
energy
engineering
natural-sciences
physical-sciences
physics
glosses: A ray consisting of a stream of electrons in a vacuum tube that are emitted by the cathode and accelerated towards the anode by an electric field.
Forms:
form: cathode rays
tags: plural