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单词 chronon
释义

WordReference Random House Unabridged Dictionary of American English © 2024
chro•non  (krōnon),USA pronunciation n. 
  1. Timea hypothetical unit of time, taken as a ratio between the diameter of the electron and the velocity of light, equivalent to approximately 10-24 second.
  • Greek chron(os) time + -on1
  • 1975–80

Collins Concise English Dictionary © HarperCollins Publishers::
chronon /ˈkrəʊnɒn/ n
  1. a unit of time equal to the time that a photon would take to traverse the diameter of an electron: about 10–24 seconds
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