Source : WordNet®

transistor
     n : a semiconductor device capable of amplification [syn: {junction
         transistor}, {electronic transistor}]

Source : Free On-Line Dictionary of Computing

transistor
     
         A three terminal {semiconductor} amplifying
        device, the fundamental component of most active electronic
        circuits, including digital electronics.  The transistor was
        invented on 1947-12-23 at {Bell Labs}.
     
        There are two kinds, the {bipolar transistor} (also called the
        junction transistor), and the {field effect transistor} (FET).
     
        Transistors and other components are interconnected to make
        complex {integrated circuit}s such as {logic gate}s,
        {microprocessor}s and memory.
     
        (1995-10-05)