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unnilpentium
American
[yoo-nil-pen-tee-uhm]
/ ˌju nɪlˈpɛn ti əm /
noun
Chemistry, Physics.
Etymology
Origin of unnilpentium
First recorded in 1980–85; from Latin ūn(us) “one” + nil ( def. ) “zero” + Greek pént(e) “five” + -ium ( def. )
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
