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Hypervelocity vs Relativisticspeed - What's the difference?

hypervelocity | relativisticspeed |

hypervelocity

English

Noun

(hypervelocities)
  • A very high velocity.
  • (astronomy) a velocity greater than escape velocity
  • relativisticspeed

    Not English

    Relativisticspeed has no English definition. It may be misspelled.