cathode

noun 0.792

photocathode

noun 0.739

cathode-ray tube

noun 0.673

anode

noun 0.622

electron tube

noun 0.615

vacuum tube

noun 0.614

electron gun

noun 0.609

phototube

noun 0.591

thermionic valve

noun 0.571

hydrogen electrode

noun 0.565

catheter

noun 0.564

photoelectrode

noun 0.564

glass electrode

noun 0.557

electrode

noun 0.551

fluorescent tube

noun 0.551

hot cell

noun 0.547

neon lamp

noun 0.544

tetrode

noun 0.541

field emission

noun 0.540

sacrificial anode

noun 0.533

glow discharge

noun 0.531

half cell

noun 0.531

klystron

noun 0.530

reference electrode

noun 0.528

standard hydrogen electrode

noun 0.527

magnetron

noun 0.527

fluorescent lamp

noun 0.526

neon light

noun 0.525

high voltage

noun 0.523

charged particle

noun 0.523

tunnel diode

noun 0.523

incandescent lamp

noun 0.523

hot wall

noun 0.522

pentode

noun 0.522

carbon arc

noun 0.518

photocurrent

noun 0.513

electron capture detector

noun 0.512

photomultiplier tube

noun 0.511

lamp bulb

noun 0.508

triode

noun 0.508

incandescent

noun 0.507

catheterization

noun 0.506

diode

noun 0.506

calomel electrode

noun 0.506

metal halide lamp

noun 0.505

hot band

noun 0.504

positive column

noun 0.502