dopant

[doh-puh nt]
noun Electronics.
  1. 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 of dopant

First recorded in 1960–65; dope + -ant
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for dopant

dopant

noun
  1. an element or compound used to dope a semiconductor

Word Origin for dopant

C20: see dope, -ant
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012