1

lepton

play
noun lep·ton \lep-ˈtän\

Definition of lepton

plural

lepta

play \lep-ˈtä\
  1. :  a former monetary unit equal to 1100 drachma

Origin and Etymology of lepton

Modern Greek, from Greek, a small coin, from neuter of leptos peeled, slender, small, from lepein to peel — more at leper


2

lepton

play
noun lep·ton \ˈlep-ˌtän\

Definition of lepton

  1. :  any of a family of particles (such as electrons, muons, and neutrinos) that have spin quantum number 12 and that experience no strong forces

leptonic

play \lep-ˈtä-nik\ adjective

Origin and Etymology of lepton

Greek leptos + English 2-on


Learn More about lepton


Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

done merely as a duty

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time-traveler-quiz-which-word-came-first
  • Which came first?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

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!