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adjective sub·son·ic \ˌsəb-ˈsä-nik\

Simple Definition of subsonic

  • : slower than the speed of sound

Source: Merriam-Webster's Learner's Dictionary

Full Definition of subsonic

  1. 1 :  of, relating to, or being a speed less than that of sound in air

  2. 2 :  moving, capable of moving, or utilizing air currents moving at a subsonic speed

  3. 3 :  infrasonic 1


play \-ni-k(ə-)lē\ adverb

Origin and Etymology of subsonic

International Scientific Vocabulary

First Known Use: 1937

Rhymes with subsonic

Aaronic, atonic, benthonic, bionic, boronic, Brittonic, Brythonic, bubonic, Byronic, canonic, carbonic, colonic, cyclonic, daimonic, demonic, draconic, dystonic, euphonic, hadronic, harmonic, hedonic, hydronic, iconic, ionic, Ionic, laconic, Masonic, mnemonic, moronic, neutronic, photonic, phytonic, planktonic, platonic, plutonic, pneumonic, pythonic, sardonic, sermonic, Slavonic, symphonic, synchronic, tectonic, Teutonic, transonic

Seen and Heard

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to introduce or suggest indirectly

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