mean free path

noun

Definition of mean free path 

: the average distance traversed between collisions by particles (such as molecules of a gas or free electrons in metal) in a system of agitated particles

First Known Use of mean free path

1879, in the meaning defined above

Keep scrolling for more

Learn More about mean free path

Share mean free path

Dictionary Entries near mean free path

meandrine

meaned

mean error

mean free path

meanie

meaning

meaningful

Statistics for mean free path

Look-up Popularity

Time Traveler for mean free path

The first known use of mean free path was in 1879

See more words from the same year

More from Merriam-Webster on mean free path

Britannica.com: Encyclopedia article about mean free path

Comments on mean free path

What made you want to look up mean free path? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

by word of mouth

Get Word of the Day daily email!

Test Your Vocabulary

Name that Food Quiz

Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!