To save this word, you'll need to log in.
Keep scrolling for more
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'exciton.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
1936, in the meaning defined above
International Scientific Vocabulary excitation + -on entry 2
Time Traveler for exciton
See more words from the same year
Cite this Entry
“Exciton.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/exciton. Accessed 25 May. 2020.
More from Merriam-Webster on exciton
Britannica.com: Encyclopedia article about exciton
Comments on exciton
What made you want to look up exciton? Please tell us where you read or heard it (including the quote, if possible).
See Definitions and Examples »
Get Word of the Day daily email!
Can you spell these 10 commonly misspelled words?
Test Your Knowledge - and learn some interesting things along the way.
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
Words from the week of 5/22/2020
A question for the ages
Sorting them out with style.
They're perfectly grammatical.
A definitive answer.
And who put it there, anyway?
How to use a word that (literally) drives some people nuts.
The awkward case of 'his or her'
Surprisingly specific words for shapes.
Listen to the words and spell through all three levels.