1. Quizzes & Games
  2. Word of the Day
  3. Video
  4. New Words
 

electron

14 ENTRIES FOUND:
  1. electron (noun)
  2. electron-dense (adjective)
  3. electron micrograph (noun)
  4. electron microscope (noun)
  5. electron optics (noun plural but singular in construction)
  6. electron paramagnetic resonance (noun)
  7. electron spin resonance (noun)
  8. electron transport (noun)
  9. electron volt (noun)
  10. positive electron (noun)
  11. scanning electron micrograph (noun)
  12. scanning electron microscope (noun)
  13. transmission electron microscope (noun)
  14. valence electron (noun)

elec·tron

noun \i-ˈlek-ˌträn\

Definition of ELECTRON

: an elementary particle consisting of a charge of negative electricity equal to about 1.602 × 10−19 coulomb and having a mass when at rest of about 9.109534 × 10−28 gram or about 1⁄1836 that of a proton

Learn More About

Ask The Editor Videos

 
2014 Word of the Year: Behind the Scenes
 
How the Months Got Their Names
 
Webster's Dictionary of 1864
 
Old-School Grammar
 
Schwa
 
That vs. Which
 
i.e. vs. e.g.
 
Longest Word in the Dictionary

Seen & Heard

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

Test Your Vocabulary
Take Our 10-Question Quiz
Name That Thing
Take our visual vocabulary quiz
Test Your Knowledge »
True or False?
A quick quiz about stuff worth knowing
Take It Now »
Spell It
The commonly misspelled words quiz
Hear It, Spell It »