follow Dictionary.com

What's the "een" in Halloween?

photoelectric threshold

noun, Physics.
1.
the minimum frequency or maximum wavelength of incident radiation necessary to release photons from a given surface.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source

Word of the Day

Difficulty index for photoelectric threshold

Few English speakers likely know this word

Word Value for photo

10
10
Scrabble Words With Friends