hypervelocity

[hahy-per-vuh-los-i-tee]
noun, plural hypervelocities.
extremely high velocity, as of projectiles, space vehicles, or accelerated nuclear particles.

Origin:
1945–50; hyper- + velocity

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Example sentences
In addition, debate existed about the use of low-density aerogel for capturing hypervelocity particles.
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