different between subsonic vs transonic

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

trans- +? sonic

Adjective

transonic (not comparable)

1. Just below, or just above the speed of sound (0.8 < Ma < 1.2 approximately).
2. Passing from subsonic to supersonic, or vice versa.
3. Travelling through a fluid (commonly air) at a speed where regions of supersonic and subsonic flow coexist simultaneously over different portions of the surface of the moving object in question.

Coordinate terms

• plasmasonic
• hypersonic
• supersonic
• subsonic

Related terms

• transonically
• transonics

Translations

See also

• sound barrier

Anagrams

• consarn it, consarnit, constrain, introscan, non-racist, nonracist