Hallwachs effect

noun Hall·wachs effect \ˈhälˌväks-\

Definition of Hallwachs effect

  1. :  a photoelectric effect in which a negatively charged body in a vacuum is discharged upon exposure to ultraviolet radiation

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 hallwachs effect

after Wilhelm Hallwachs †1922 German physicist

Seen and Heard

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


a trip made at another's expense

Get Word of the Day daily email!