/ trænˈzɪstə(r); NAmE ; -ˈsɪst-/ noun
a small electronic device used in computers, radios, televisions, etc. for controlling an electric current as it passes along a circuit
(also tranˌsistor ˈradio ) (also informal tranny especially in BrE ) a small radio with transistors
1940s: from transconductance , on the pattern of words such as varistor .