tardyon

T1A1R1D2Y4O1N1
UK/ˈtɑː.di.ɒn/US/ˈtɑɹ.di.ɑn/

noun

Any particle with non-zero mass (i.e. one that travels more slowly than the speed of light).

Similar
bradyonittyonmassive particle
Scrabble 11

Meanings

nountardyon (plural tardyons)

plural tardyons

  1. natural sciencesAny particle with non-zero mass (i.e. one that travels more slowly than the speed of light).

    Just as brute force cannot make a tachyon out of a tardyon...

    1988, Nick Herbert, Faster Than Light: Superluminal Loopholes in Physics
    1 more example

    One, our own, is the tardyon-universe, in which all particles go at subluminal velocities and may accelerate to nearly the speed of light.

    1972, Isaac Asimov, Asimov's Guide to Science

    Synonyms: bradyon, ittyon, massive particle

Synonyms & antonyms

nounAny particle with non-zero mass (i.e. one that travels more slowly than the speed of light).

Similar
bradyonittyonmassive particle

Origin

Translations

Chinese Mandarin 慢子
  • 慢子 (mànzǐ)particle
French tardyon
  • tardyonparticle
Japanese ターディオン
  • ターディオン (tādion)particle
Polish tardion
  • tardionparticle

Rhymes & wordplay

Anagrams

Cite this entry
APA

tardyon. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/tardyon

MLA

“tardyon.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/tardyon. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “tardyon,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/tardyon.

Source: tardyon on Wiktionary, CC BY-SA 4.0.