pentode

noun pen·tode \ˈpen‧ˌtōd\

Definition of pentode

plural

-s

  1. :  a vacuum tube with five electrodes including a cathode, an anode, a control grid, and two additional grids or other electrodes

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of pentode

International Scientific Vocabulary penta- + -ode


Seen and Heard

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

WORD OF THE DAY

to help become familiar with something

Get Word of the Day daily email!