(n) A hypothetical subatomic particle that constantly travels quicker versus speed of light.
(n) A hypothetical particle that travels quicker versus rate of light.
(n) A flaw in a physical concept that predicts the presence of tachyons or similar paradoxical results. Compare with ghost.
tachyon in Community Dictionary
A theoretical particle beleived traveling at a speed greater than compared to the rate of light. Up to now this has prevented detection by perhaps the most powerful particle accellerators. by RobertoReport definition