tachyon

Formed as: tachy- +‎ -on, from ταχύς (takhús, “swift”, “rapid”).

Coined by American physicist Gerald Feinberg in 1967.

• (Received Pronunciation) IPA^(key): /ˈtæk.i.ɒn/
• (General American) IPA^(key): /ˈtæ.kiˌɑn/

tachyon (plural tachyons)

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

• tachyonic particle

• tachyonic

• luxon
• tardyon

Borrowed from English tachyon.

• IPA^(key): /ˈtɑ.xiˌɔn/

• Audio:

  (file)

• Hyphenation: ta‧chy‧on

tachyon n (plural tachyonen)

1. (physics) tachyon

• IPA^(key): /ta.kjɔ̃/

• Audio (Paris):

  (file)

tachyon m (plural tachyons)

1. (particle physics) tachyon

• “tachyon”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

• choyant