Word.ws English Dictionary

tachyon

/ˈtæk.i.ɒn/US/ˈtæ.kiˌɑn/

tachyon noun: a hypothetical particle that travels faster than the speed of light.

Noun

tachyon (plural tachyons)

  1. (particle) A hypothetical particle that travels faster than the speed of light.
  2. A flaw in a physical theory that predicts the existence of tachyons or similar paradoxical results. Compare with ghost.

tachyon meaning in Tamil, Bengali, Arabic and Malay

tachyon in Tamil

டேக்கியான்

tachyon in Bengali

hypothetical particle
ট্যাকিয়ন ṭêkiẏon

tachyon in Arabic

hypothetical particle
تَكْيُون takyūn

tachyon in Malay

hypothetical particle
takion
More languagesFewer languages
tachyon in Indonesian
takhion
tachyon in Persian
تاکیون
tachyon in Thai
แทคีออน

Synonyms of tachyon

Forms of tachyon

pluraltachyons

Origin of tachyon

Formed as: tachy- + -on, from ταχύς (takhús, “swift”, “rapid”). Coined by American physicist Gerald Feinberg in 1967.

Words formed from tachyon

Questions about tachyon

What does tachyon mean?
Tachyon means a hypothetical particle that travels faster than the speed of light.
What is tachyon in Tamil?
Tachyon in Tamil is டேக்கியான். See Tachyon meaning in Tamil.
What part of speech is tachyon?
Tachyon is a noun.
How do you pronounce tachyon?
Tachyon is pronounced /ˈtæk.i.ɒn/ (UK).
What is the plural of tachyon?
The plural of tachyon is tachyons.

Words near tachyon in the dictionary

  1. tachymetric
  2. tachymetry
  3. tachymorphic
  4. tachymyopathies
  5. tachymyopathy
  6. tachyon
  7. tachyonic
  8. tachyonic antitelephone
  9. tachyonic antitelephones
  10. tachyons
  11. tachypace

Source and license

Adapted from Wiktionary: tachyon (page history and authors); tachyon (Tamil Wiktionary) (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.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-tachyon.wav.

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