mul·​ti·​nu·​cle·​ar ˌməl-tē-ˈnü-klē-ər How to pronounce multinuclear (audio)
 nonstandard  -kyə-lər
: multinucleated
especially : having or involving more than two atomic nuclei
… we had two NMR spectrometers available for a large number of students to use for their research. One was set up for multinuclear spectra … Sheri Blystone
: having multiple world powers armed with nuclear weapons
It was the frightening prospect of a multinuclear world as much as the older Arab-Israeli confrontation that propelled American policy on the Middle East.William Hyland

Word History

First Known Use

1853, in the meaning defined at sense 1

Time Traveler
The first known use of multinuclear was in 1853

Dictionary Entries Near multinuclear

Cite this Entry

“Multinuclear.” Dictionary, Merriam-Webster, Accessed 20 Jul. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!