Global Standards for the Microelectronics Industry
(1) (of a junction transistor) (A) A semiconductor junction normally biased in the low-resistance direction to inject minority carriers into the base. (Ref. 60 IRE 28.S1.)
(B) The transition region between the emitter region and the base region.
(2) (of a unijunction transistor): The transition region between the emitter region and a base region.