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mean free path

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noun Physics, Chemistry. (in a collection of moving particles)
  1. the average distance that a particle travels between successive collisions with other particles.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for mean free path

mean free path

noun
  1. the average distance travelled by a particle, atom, etc, between collisions
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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

mean free path in Culture

mean free path

The average distance that an object (usually an atom or molecule) can move before colliding with something.

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The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.