Site Map | FAQ

• Editor's Favorites
  • Answerplease: A new Q & A site
  • Black History Month
  • Valentine's Day
  • 2011 Year in Review
  • Campaign 2012
  • Country Profiles
  • Most Populous Cities of the World
  • Holidays in America
  • 50 States
  • Conversion Calculator
  • Color Psychology
  • Top 50 U.S. Cities
  • Infoplease's Facebook page
  • Follow Infoplease on Twitter

 

Dictionary

mu•on

Pronunciation: (myOO'on), [key]
—n. Physics.
a lepton similar in most respects to the electron except that it is unstable, it may be positively charged, and its mass is approximately 207 times greater; the positively charged muon is the antiparticle of the negatively charged muon. Symbol: μ

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

muny

muonium

• • Cite
  • Print
  • Email
  • Bookmark
    • Add bookmark
    • Add to del.icio.us
    • Digg It!
    • Add to Reddit

Related Content Daily Word Quiz: aficionado Analogy of the Day: Today's Analogy Spelling Bee: Today's Spelling Bee Kids' Word Quiz: winsome Crossword: Crossword Puzzle Guide Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language

Find definitions for: