Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

dynatron

play
noun dy·na·tron \ˈdī-nə-ˌträn\

Definition of dynatron

  1. :  a vacuum tube in which the secondary emission of electrons from the plate results in a decrease in the plate current as the plate voltage increases



Origin of dynatron

Greek dynamis power


First Known Use: 1918


Learn More about dynatron


Seen and Heard

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

WORD OF THE DAY

February 7, 2016

a slight offense

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

spindrift pince-nez duvet kittly-benders
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ