| infrasonic | (adjective) having frequencies below those of audible sound | - |
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| masonic | (adjective) of or relating to stonemasons or masonry | - |
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| mesonic | (adjective) of or pertaining to a meson | Synonyms: mesic |
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| quadrasonic | (adjective) of or relating to quadraphony | Synonyms: quadraphonic, quadriphonic, quadrisonic |
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| quadrisonic | (adjective) of or relating to quadraphony | Synonyms: quadraphonic, quadrasonic, quadriphonic |
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| reasoning | (adjective) endowed with the capacity to reason | Synonyms: intelligent, thinking |
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| sonic | (adjective) (of speed) having or caused by speed approximately equal to that of sound in air at sea level | Synonyms: transonic |
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| (adjective) relating to audible sound | - |
| subsonic | (adjective) (of speed) less than that of sound in a designated medium | - |
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| supersonic | (adjective) (of speed) greater than the speed of sound in a given medium (especially air) | - |
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| (adjective) having frequencies above those of audible sound | Synonyms: ultrasonic |
| transonic | (adjective) (of speed) having or caused by speed approximately equal to that of sound in air at sea level | Synonyms: sonic |
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| ultrasonic | (adjective) having frequencies above those of audible sound | Synonyms: supersonic |
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| unreasoning | (adjective) not based on reason or evidence | Synonyms: blind |
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