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mean free path

American  

noun

Physics, Chemistry.
  1. the average distance that a particle travels between successive collisions with other particles.


mean free path British  

noun

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

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


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"Measuring the effective mean free path of the electrons is very challenging in the low kinetic energy region, as was done in this study, added Yin. "

From Science Daily • Sep. 29, 2023

The mean free path is the average distance a molecule travels between collisions.

From Textbooks • Feb. 14, 2019

It has been suggested that the extent of the dark space represents the mean free path of the molecules....

From Scientific American Supplement, No. 795, March 28, 1891 by Various

In the same gas, however, at different pressures the discharging potential does not vary so quickly with the pressure as does the mean free path.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 8 "Conduction, Electric" by Various

These elements are the result of atomic arrangement, and the atoms of each are known to have various vibrations, the extent of which is called the "mean free path of vibration."

From How to Read the Crystal or, Crystal and Seer by Sepharial

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