photoelectron

[ foh-toh-i-lek-tron ]

/ ˌfoʊ toʊ ɪˈlɛk trɒn /

noun Physics.

an electron emitted from a system by the photoelectric effect.

QUIZZES

TAKE THIS QUIZ TO SEE WHAT YOU KNOW ABOUT HIGH SCHOOL PUNCTUATION!

Commas mark divisions in sentences. Periods end declarative sentences. Apostrophes show possession. Easy, right? Well, punctuation can get pretty tricky—fast. Think you got what it takes to be a punctuation expert? Take our quiz to prove it!

Question 1 of 10

Which of the options below is the best punctuation for the sentence? It__s your turn to pick the movie __ but your sister gets to pick the board game we _ re going to play.

Its your turn to pick the movie but your sister gets to pick the board game we’re going to play.

It’s your turn to pick the movie but your sister gets to pick the board game were going to play.

It’s your turn to pick the movie, but your sister gets to pick the board game we’re going to play.

TAKE THE QUIZ TO FIND OUT

Origin of photoelectron

First recorded in 1910–15; photo- + electron

Words nearby photoelectron

photoelectric effect, photoelectric magnitude, photoelectric meter, photoelectric threshold, photoelectricity, photoelectron, photoelectrotype, photoemission, photoeng., photoengrave, photoengraving

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for photoelectron

photoelectron

/ (ˌfəʊtəʊɪˈlɛktrɒn) /

noun

an electron ejected from an atom, molecule, or solid by an incident photon

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for photoelectron

photoelectron

[ fō′tō-ĭ-lĕk′trŏn′ ]

An electron released or ejected from a photoelectric substance, having absorbed energy from incoming light.