word
tachyon
TAK-ee-on
ˈtækiɒnListen
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Syllable breakdown
tachyon
Dictionary meaning
A hypothetical particle that always moves faster than light; in special relativity, tachyons would have imaginary mass and travel backward in time.
History and origin
Greek — 'tachys' (swift) + '-on' (particle suffix).
Common mispronunciations
TAY-kee-ontak-EE-on
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