thyratron
thyratron
Definition
☆ thy·ra·tron (t̸hī′rə trän′)
noun
a hot-cathode, triode or tetrode, electron tube containing low-pressure gas or metal vapor in which one or more grids control the start of the current flow but have no further control over it
Etymology: < Gr thyris, window, cell + -a- + -tron
