Navigation
Home
Resources
Irregular verbs quizzes English conjugator English-French dictionary French dictionary English dictionary Monolingual dictionaries Scores by institution Free sample tests FAQ Pricing Tourism training Blog Videos
Login Sign up
Blog
Videos
Pricing
FR EN

toponium

noun

toponium

noun

Etymology From top + -onium. From top quark and "-onium" as in positronium.

1

Natural sciences, Physical sciences, Physics Particle Any hypothetical meson formed from a top quark and its antiquark; would be very unstable because of the large mass of the top quark

Derived terms
stoponium
Related terms
bottomonium, quarkonium

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.