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Hypersonic vs Undefined - What's the difference?

hypersonic | undefined |

As adjectives the difference between hypersonic and undefined

is that hypersonic is (of a speed|aviation) equal to, or greater than, or capable of achieving, five times the speed of sound while undefined is lacking a definition or value.

hypersonic

English

(wikipedia hypersonic)

Adjective

(en adjective)
  • (of a speed, aviation) equal to, or greater than, or capable of achieving, five times the speed of sound.
  • (of a speed, aeronautics) far enough above the speed of sound as to cause significant differences in behaviour due to chemical reactions or disassociation of the air.

    • Related terms

    * plasmasonic * supersonic * transonic * subsonic

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined