English Explanatory Dictionary

toponium

English dictionary entry

Meanings

noun
  1. Any hypothetical meson formed from a top quark and its antiquark; would be very unstable because of the large mass of the top quark

Word forms

toponium toponiums toponia

Etymology

Etymology tree English top English onium English -on Proto-Indo-European *-om Proto-Italic *-om Latin -umder. English -ium English -onium English toponium From top + -onium. From top quark and "-onium" as in positronium.

Related words

bottomonium quarkonium
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