subsonic

---

Adjective

subsonic (not comparable)

1. (of a sound, scientific) having a frequency too low to be audible
2. (of a sound, literary) very quiet, almost inaudible

   The noise of the ship was all around her. The faint subsonic rumble of the reactor and drive. (Leviathan Wakes, James S. A. Corey)

3. (of a speed) (aviation) less than the speed of sound (in the same medium, and at the same temperature and pressure)
4. (fluid mechanics, of a flow) with a Mach number such that 0.3 < Ma < 0.8 (approximately - the exact limits vary between sources)

Translations

• Italian: subsonico
• Portuguese: subsónico (Portugal), subsônico (Brazil)
• Russian: дозвуково́й
• Spanish: subsónico

Noun

subsonic (plural subsonics)

1. an aircraft whose maximum speed is less than the speed of sound

---

This text is extracted from the Wiktionary and it is available under the CC BY-SA 3.0 license | Terms and conditions | Privacy policy 0.002