base - (electronics) the part of a transistor that separates the emitter from the collector

collector - the electrode in a transistor through which a primary flow of carriers leaves the region between the electrodes

emitter - the electrode in a transistor where electrons originate

FET, field-effect transistor - a transistor in which most current flows in a channel whose effective resistance can be controlled by a transverse electric field

p-n-p transistor - a junction transistor having an n-type semiconductor between a p-type semiconductor that serves as an emitter and a p-type semiconductor that serves as a collector

semiconductor device, semiconductor unit, semiconductor - a conductor made with semiconducting material

electronics - the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices