subsonic

adj.

1. Of less than audible frequency.
2. Having a speed less than that of sound in a designated medium.

adj. of or pertaining to speeds less than the speed of sound.

See the Introduction, Abbreviations and Pronunciation for further details.

(DOD) Of or pertaining to speeds less than the speed of sound. See also speed of sound.

Note: click on a word meaning below to see its connections and related words.

The adjective has one meaning:

Meaning #1: (of speed) less than that of sound in a designated medium
  Antonyms: supersonic (meaning #1), sonic (meaning #1)

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Dansk (Danish)
adj. - underlyds-, under lydens hastighed

Nederlands (Dutch)
beneden de geluidssnelheid

Français (French)
adj. - subsonique

Deutsch (German)
adj. - Unterschall-

Ελληνική (Greek)
adj. - υποηχητικός, υποηχητικής ταχύτητας

Italiano (Italian)
subsonico

Português (Portuguese)
adj. - subsônico

Русский (Russian)
дозвуковой, летящий с дозвуковой скоростью, инфразвуковой

Español (Spanish)
adj. - subsónico

Svenska (Swedish)
adj. - underljuds-

中文（简体）(Chinese (Simplified))
比音速稍慢的, 次音速的

中文（繁體）(Chinese (Traditional))
adj. - 比音速稍慢的, 次音速的

한국어 (Korean)
adj. - 아음속의, 음속 이하의

日本語 (Japanese)
adj. - 音速以下の

العربيه (Arabic)
‏(صفه) اقل من سرعه الصوت‏

עברית (Hebrew)
adj. - ‮תת-קולית (מהירות)‬

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Pinnacle Subsonic Subwoofer