Gain access to thousands of additional definitions and advanced search features—ad free! JOIN NOW
: a branch of physical science that deals with nucleons or with all phenomena of the atomic nucleus
1937, in the meaning defined above
Keep scrolling for more
Resources for nucleonics
Time Traveler for nucleonics
See more words from the same year
More Definitions for nucleonics
More from Merriam-Webster on nucleonics
See words that rhyme with nucleonics
Britannica.com: Encyclopedia article about nucleonics
Comments on nucleonics
What made you want to look up nucleonics? Please tell us where you read or heard it (including the quote, if possible).
the setting in which something occurs
Get Word of the Day daily email!
Musical Words Quiz
Test your vocabulary with our 10-question quiz!
Test Your Knowledge - and learn some interesting things along the way.
Red Cross Warns of Shelter Conditions
RIP Burt Reynolds
NYT Publishes Anonymous Piece
Kavanaugh Mentions Word in Hearing
Manafort Guilty on 8 Counts
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
How a folk song became a term of derision.
Sorry, not sorry
The participle made famous by Elvis
A not-so-sarcastic history
And is one way more correct than the others?
The story of an imaginary word that managed to sneak past our editors and enter the dictionary.
How to use a word that (literally) drives some people nuts.
The awkward case of 'his or her'
A quiz in common time.
Do you know the person or title these quotes describe?