different between supershadow vs hypersonic

English

super- +? shadow

supershadow (plural supershadows)

(mathematics) This term needs a definition. Please help out and add a definition, then remove the text {{rfdef}}.

hyper- +? sonic

hypersonic (comparative more hypersonic, superlative most hypersonic)

(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 dissociation of the air.

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