subsonic

English

Etymology

From sub- +‎ sonic.

Pronunciation

• Rhymes: -ɒnɪk

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

• hypersonic
• plasmasonic
• supersonic
• transonic

 

Translations

(of a speed) less than the speed of sound

• Bulgarian: дозвукова (скорост) (dozvukova (skorost))
• Chinese:

  Mandarin: 次音速 (cìyīnsù)

• Czech: podzvukový (cs), subsonický (cs)
• Dutch: subsonisch (nl)
• Irish: foshonach
• Italian: subsonico (it)
• Portuguese: subsónico (Portugal), subsônico (Brazil)
• Romanian: subsonic (ro)
• Russian: дозвуково́й (ru) (dozvukovój)
• Spanish: subsónico (es)
• Swedish: subsonisk, underljuds-
• Tagalog: kubnugin

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): /subˈso.nik/

Adjective

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

1. subsonic

   Synonym: subacustic

   Antonym: hipersonic

Declension

Declension of subsonic

		singular			plural
		masculine	neuter	feminine	masculine	neuter	feminine
nominative/ accusative	indefinite	subsonic		subsonică	subsonici	subsonice
	definite	subsonicul		subsonica	subsonicii	subsonicele
genitive/ dative	indefinite	subsonic		subsonice	subsonici	subsonice
	definite	subsonicului		subsonicei	subsonicelor	subsonicilor