transistor

noun

tran·​sis·​tor tran-ˈzi-stər How to pronounce transistor (audio)
tran(t)-ˈsi-
1
: a solid-state electronic device that is used to control the flow of electricity in electronic equipment and usually consists of a small block of a semiconductor (such as germanium) with at least three electrodes
2
: a transistorized radio

Examples of transistor in a Sentence

Recent Examples on the Web
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This technology enables chip manufacturers to print billions of transistors onto a chip the size of a fingernail. — Prabhat Ranjan Mishra, Interesting Engineering, 1 Oct. 2026 The team achieved that by making each implant’s transistor switch on only when the incoming pulse crosses a specific threshold. — Jacek Krywko, ArsTechnica, 30 Sep. 2026 The signal passes through a transistor controlled by the Arduino so that the flashes can be started and stopped at prescribed times. — David Schneider, IEEE Spectrum, 24 Sep. 2026 Chip and Performance To increase the performance, the phones feature the A20 Pro chip, which uses the latest 2-nanometer manufacturing process to fit more transistors on the silicon, an upgrade from the 3-nanometer node. — Michael Kan, PC Magazine, 9 Sep. 2026 See All Example Sentences for transistor

Word History

First Known Use

1948, in the meaning defined at sense 1

Time Traveler
The first known use of transistor was in 1948

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Cite this Entry

“Transistor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/transistor. Accessed 9 Oct. 2026.

Kids Definition

transistor

noun
1
: an electronic device that consists of a small block of a semiconductor (as germanium) with at least three electrodes and is used to control the flow of electricity in electronic equipment (as a radio or computer)
2
: a radio having transistors

called also transistor radio

Medical Definition

: a solid-state electronic device that is used to control the flow of electricity in electronic equipment and consists of a small block of a semiconductor (as germanium) with at least three electrodes

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