charmonium

[ chahr-moh-nee-uhm ]
/ tʃɑrˈmoʊ ni əm /

noun Physics.

any meson composed of a charmed quark and a charmed antiquark.

QUIZZES

A THANKSGIVING SPELLING QUIZ TO FEED YOUR HISTORY KNOWHOW

Before you celebrate family and blessings this year, take this quiz to test your spelling knowledge of the history and important figures of the first Thanksgiving.
Question 1 of 7

Origin of charmonium

1970–75; charm1 + -onium, probably extracted from positronium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for charmonium

charmonium
/ (tʃɑːˈməʊnɪəm) /

noun plural -nia

physics an elementary particle that contains an antiquark and a charm quark

Word Origin for charmonium

C20: from charm (sense 7)
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