different between subsonic vs supersonic

English

Etymology

From sub- +? sonic.

Pronunciation

• Rhymes: -?n?k

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)

Related terms

Translations

Noun

subsonic (plural subsonics)

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

Romanian

Etymology

Borrowed from French subsonique.

Pronunciation

• IPA^(key): /sub?so.nik/

Adjective

subsonic m or n (feminine singular subsonic?, masculine plural subsonici, feminine and neuter plural subsonice)

1. subsonic

   Synonym: subacustic

   Antonym: hipersonic

Declension

English

Etymology

super- +? sonic

Pronunciation

• Rhymes: -?n?k

Adjective

supersonic (not comparable)

1. (of a speed) greater than the speed of sound (in the same medium, and at the same temperature and pressure)
2. (colloquial, of a sound) ultrasonic, having a frequency too high to be audible

Related terms

• (speed): plasmasonic, hypersonic, transonic, subsonic
• (sound): infrasonic, sonic

Translations

Noun

supersonic (plural supersonics)

1. An aircraft that can travel at the speed of sound.

See also

• superluminal

Anagrams

• coin purses, croupiness, percussion

Romanian

Etymology

From French supersonique

Adjective

supersonic m or n (feminine singular supersonic?, masculine plural supersonici, feminine and neuter plural supersonice)

1. supersonic

Declension