pneumatic

1 of 2

adjective

Synonyms of pneumatic
1
: of, relating to, or using gas (such as air or wind):
a
: moved or worked by air pressure
b(1)
: adapted for holding or inflated with compressed air
(2)
: having air-filled cavities
2
: of or relating to the pneuma : spiritual
3
: having a well-proportioned feminine figure
especially : having a full bust

pneumaticity

2 of 2

noun

plural -es
: the quality or state of being pneumatic
specifically : a condition marked by the presence of air cavities

Examples of pneumatic in a Sentence

Adjective a movie star who is remembered mainly as a pneumatic sex symbol of the 1950s
Recent Examples on the Web
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Adjective
SpaceX’s Falcon user guide says pneumatic devices release and push apart Falcon’s stages, as well as Falcon Heavy’s side boosters. — Atharva Gosavi, Interesting Engineering, 27 Sep. 2026 Combined with larger pneumatic tires and dedicated suspension systems, mid-range dual-motor scooters smooth out potholes and cracked pavement for a far more comfortable ride. — New Atlas, 22 Sep. 2026 How Compression Boots Work Compression boots rely on intermittent pneumatic compression, or IPC. — Samantha Agate, Sacbee.com, 17 Sep. 2026 The devices use sequential pneumatic pressure to squeeze the legs in wave-like patterns, a technique clinicians call intermittent pneumatic compression, or IPC. — Samantha Agate, Charlotte Observer, 17 Sep. 2026 See All Example Sentences for pneumatic

Word History

Etymology

Adjective

Latin pneumaticus, from Greek pneumatikos, from pneumat-, pneuma air, breath, spirit, from pnein to breathe — more at sneeze

First Known Use

Adjective

1624, in the meaning defined at sense 2

Time Traveler
The first known use of pneumatic was in 1624

Browse Nearby Words

Cite this Entry

“Pneumatic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pneumatic. Accessed 1 Oct. 2026.

Kids Definition

pneumatic

adjective
1
: of, relating to, or using air, wind, or other gas
2
: moved or worked by air pressure
a pneumatic drill
3
: made to hold or be inflated with compressed air
pneumatic tires
Etymology

Adjective

from Latin pneumaticus "relating to or using air," from Greek pneumatikos (same meaning), from pneumat-, pneuma "air, breath"

Medical Definition

pneumatic

adjective
: of, relating to, or using gas (as air): as
a
: moved or worked by air pressure
b
: adapted for holding or inflated with compressed air
c
: having air-filled cavities
pneumatic bone

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