Cathode, or negative electrode, in a vacuum tube or diodeAnode, or positive electrode, in certain applications based on the emission of ions from a solid surfaceOne of the three terminals of a bipolar transistor
Devices which emit electromagnetic radiation:
Lambertian emitter, a light source whose radiance varies with angle according to Lambert's cosine lawAn infrared LED used to emulate a remote control
Other uses:
A device used in drip irrigationA compiler's code generator reference
