junction, emitter(-base)

(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.

References: 

JESD10, 9/81

JESD77-B, 2/00

JESD77-B, 2/00