thyristor

[thahy-ris-ter]

thy·ris·tor

[thahy-ris-ter]
noun Electronics.
a semiconductor device having two stable states, used as an electronic switch.

Origin:
1965–70; thyr(atron) + (trans)istor
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Thyristor is always a great word to know.
So is resistor-capacitor circuits. Does it mean:
opposition of inductance and capacitance to alternating current
electric circuit comprised of resistors and capacitors driven by voltage or current source
Collins
World English Dictionary
thyristor (θaɪˈrɪstə)
 
n
any of a group of semiconductor devices, such as the silicon-controlled rectifier, that can be switched between two states
 
[C20: from thyr(atron) + (trans)istor]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Encyclopedia Britannica
Encyclopedia

thyristor

any of several types of transistors having four semiconducting layers and therefore three p-n junctions; the thyristor is a solid-state analogue of the thyratron vacuum tube, and its name derives from the combination of the two words thyratron and transistor. A common form of thyristor is the silicon-controlled rectifier (SCR), used to convert alternating current (AC) to direct current (DC) and widely used as a component of devices that control motor speeds, liquid levels, temperatures, and pressures.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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