• synonyms

free electron

noun Physics.

an electron that is not attached to an atom or molecule and is free to respond to outside forces.


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Nearby words

free coinage, free companion, free company, free delivery, free diving, free electron, free energy, free enterprise, free enterpriser, free expansion, free fall

Origin of free electron

First recorded in 1905–10 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for free electron

free electron


any electron that is not attached to an ion, atom, or molecule and is free to move under the influence of an applied electric or magnetic field
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