Word.ws English Dictionary

toponium

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

Noun

toponium (plural toponiums or toponia)

  1. (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

Forms of toponium

pluraltoponiums
pluraltoponia

Origin of toponium

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

Words formed from toponium

Questions about toponium

What does toponium mean?
Toponium means any hypothetical meson formed from a top quark and its antiquark; would be very unstable because of the large mass of the top quark.
What part of speech is toponium?
Toponium is a noun.
What is the plural of toponium?
The plural of toponium is toponiums.

Words near toponium in the dictionary

  1. topomorphologic
  2. topomorphological
  3. topomyosin
  4. toponarcosis
  5. toponia
  6. toponium
  7. toponiums
  8. toponomastic
  9. toponomastics
  10. toponome
  11. toponomes

Source and license

Adapted from Wiktionary: toponium (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “toponium.” Word.ws, https://word.ws/toponium. Based on Wiktionary, CC BY-SA 4.0.