IPA: /θaɪˈrɪstər/
KK: /θaɪˈrɪstər/
A type of semiconductor device that can control electrical power and is used in various electronic circuits as a switch or rectifier.
The thyristor is commonly used in power control applications such as light dimmers and motor speed controls.
Thyristor is formed from "thyris" (from Greek "thyris", meaning door or opening) and "-istor" (a suffix used in electronics to denote a device). The word describes a semiconductor device that acts as a switch, controlling the flow of electricity, much like a door controls entry.
Think of a 'door' ('thyris') that opens or closes to control the flow of electricity, just like a thyristor does.