pneumatic

adjective

pneu·​mat·​ic nu̇-ˈma-tik 

nyu̇-

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

pneumatically

nu̇-ˈma-ti-k(ə-)lē 

nyu̇-

adverb

pneumaticity

ˌnü-mə-ˈti-sə-tē 

ˌnyü-

noun

Synonyms of pneumatic

• shapely
• plump
• curvaceous

Examples of pneumatic in a Sentence

a movie star who is remembered mainly as a pneumatic sex symbol of the 1950s

Recent Examples on the Web

The cart's got a quick-release dump latch on the front and pneumatic tires that handle mud and sand with no problem. — Kat Merck, Wired News, 3 May 2026

Celeste claims its pneumatic textile wing structure enables a 300km range and 6-hour battery endurance. — Chris Young, Interesting Engineering, 14 May 2026

The next day she is shipped off to her first job, also within the confines of this impossibly vast building, which involves shoving film canisters down a pneumatic tube. — Literary Hub, 15 May 2026

Manufacturers can also tweak turbochargers, wastegates, sensors, spark plugs, fuel injectors, pneumatic valves and engine cooling systems. — Madeline Coleman, New York Times, 26 June 2026

Word History

Etymology

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

First Known Use

1624, in the meaning defined at sense 2

Phrases Containing pneumatic

• pneumatic drill

Rhymes for pneumatic

• asthmatic
• chromatic
• climatic
• dogmatic
• dramatic
• ecstatic
• emphatic
• erratic
• eustatic
• fanatic
• hepatic
• lymphatic

Kids Definition

pneumatic

adjective

pneu·​mat·​ic n(y)u̇-ˈmat-ik 

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

pneumatically

-i-k(ə-)lē 

adverb

Etymology

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

Medical Definition

pneumatic

adjective

pneu·​mat·​ic n(y)u̇-ˈmat-ik 

: 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

pneumatically

-i-k(ə-)lē 

adverb