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quarkonium

[ kwawr-koh-nee-uhm, kwahr- ]
/ kwɔrˈkoʊ ni əm, kwɑr- /
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noun Physics.

a meson composed of a quark and an antiquark of the same flavor.

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On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of quarkonium

1975–80; quark + -on1 + -ium, on the model of positronium and similarly named particles
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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