subsonic
adjective
sub·son·ic
ˌsəb-ˈsä-nik 
1
: of, relating to, or being a speed less than that of sound in air
2
: moving, capable of moving, or utilizing air currents moving at a subsonic speed
Examples of subsonic in a Sentence
Recent Examples on the Web
Low-flying, subsonic cruise missiles aren’t terribly difficult to shoot down, given enough warning.
—
David Axe, Forbes, 4 Oct. 2024
The autonomous subsonic aircraft is being developed as part of the US Air Force's CCA program and is based on the company's XQ-67A prototype.
—David Szondy, New Atlas, 19 Sep. 2024
There’s plenty of definition and detail all the way from that subsonic base to the tiniest treble details and yet the sound never strains or tires the listener’s ears because the planar magnetic drivers show almost no distortion thanks to a Total Harmonic Distortion of less than 0.3%.
—Mark Sparrow, Forbes, 15 Sep. 2024
Once in the lower atmosphere and with speeds now in the subsonic realm, parachutes were deployed to further slow the capsule.
—David Szondy, New Atlas, 6 Sep. 2024
See all Example Sentences for subsonic 
These examples are automatically compiled from online sources to
illustrate current usage. Opinions expressed in the examples do not represent those of
Merriam-Webster or its editors.
Send us feedback
about these examples.
David Axe, Forbes, 4 Oct. 2024
The autonomous subsonic aircraft is being developed as part of the US Air Force's CCA program and is based on the company's XQ-67A prototype.
—David Szondy, New Atlas, 19 Sep. 2024
There’s plenty of definition and detail all the way from that subsonic base to the tiniest treble details and yet the sound never strains or tires the listener’s ears because the planar magnetic drivers show almost no distortion thanks to a Total Harmonic Distortion of less than 0.3%.
—Mark Sparrow, Forbes, 15 Sep. 2024
Once in the lower atmosphere and with speeds now in the subsonic realm, parachutes were deployed to further slow the capsule.
—David Szondy, New Atlas, 6 Sep. 2024
See all Example Sentences for subsonic
Dictionary Entries Near subsonic
Cite this Entry
“Subsonic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subsonic. Accessed 8 Nov. 2024.
Copy CitationKids Definition
subsonic
adjective
sub·son·ic
ˌsəb-ˈsän-ik
ˈsəb-
1
: of, relating to, or being a speed less than that of sound in air
2
: moving, capable of moving, or using air currents moving at a subsonic speed
Love words? Need even more definitions?
Merriam-Webster unabridged
Share