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dopant

[doh-puhnt]

dop·ant

[doh-puhnt]
noun Electronics.
an impurity added intentionally in a very small, controlled amount to a pure semiconductor to change its electrical properties: Arsenic is a dopant for silicon.

Origin:
1960–65; dope + -ant
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Dopant is always a great word to know.
So is capacitive reactance. Does it mean:
opposition of capacitance to alternating current
voltage that reverses direction in regular cycles
Collins
World English Dictionary
dopant (ˈdəʊpənt)
 
n
an element or compound used to dope a semiconductor
 
[C20: see dope, -ant]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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