tach·y·on (t k  - n )n. A hypothetical subatomic particle that always travels faster than the speed of light. tach y·onic adj. |
tachyon [ˈtækɪˌɒn]
n
(Physics / Nuclear Physics) Physics a hypothetical elementary particle capable of travelling faster than the velocity of light
[from tachy- + -on]
| tachyon (tk-n) A hypothetical subatomic particle that travels faster than the speed of light. Although the principles of relativity forbid the acceleration of a particle past the speed of light, they do not prohibit the existence of particles that have always moved faster than that speed. No such particle has ever been detected. |
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