hypervelocity

/ˌhaɪpərˈvɛləsəti/
noun
  1. Extremely high speed, especially speeds greater than about 3,000 meters per second, often used in space science or weapons technology.
    • The spacecraft reached hypervelocity as it entered the atmosphere, causing intense heat.
    • Engineers are designing shields to protect satellites from hypervelocity impacts by space debris.
    • A hypervelocity bullet can travel so fast that it creates a shockwave upon impact.