hypersonic

形容词 adj.

英文释义

形容词 adj.
  1. Of a speed, equal to, or greater than, or capable of achieving, five times the speed of sound.
    — He said there was worry among intelligence and military officials that China or Russia could be experimenting with hypersonic technology.
  2. Of a speed, far enough above the speed of sound as to cause significant differences in behaviour due to chemical reactions or dissociation of the air.

词形变化

more hypersonic comparative most hypersonic superlative

词源

Etymology tree
Proto-Indo-European *úp
Proto-Indo-European *-er
Proto-Indo-European *upér
Proto-Hellenic *hupér
Ancient Greek ῠ̔πέρ (hŭpér)
Ancient Greek ῠ̔περ- (hŭper-)der.
English hyper-
Proto-Indo-European *swenh₂-
Proto-Indo-European *swónh₂os
Latin sonus
Proto-Indo-European *-ikos
Proto-Italic *-ikos
Latin -icuslbor.
Old French -iquebor.
Middle English -ik
English -ic
English sonic
English hypersonic
From hyper- + sonic. Doublet of supersonic.
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