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

• curvaceous
• curvacious
• curvy
• shapely

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

This Week for more on the thrilling history of pneumatic tube usage, from sending sick cats to the vet to package delivery systems that put our modern food delivery robots to shame. —Popular Science Team, Popular Science, 23 Apr. 2025

On Monday, Thurston County Coroner Gary Warnock said Norman died from injuries, most of them caused by a pneumatic nailer. —Jessica Schladebeck, New York Daily News, 22 Apr. 2025

The seat height adjustment is a pneumatic gas lift. —Bestreviews, Mercury News, 21 Apr. 2025

Of course, without an atmosphere, the Moon isn’t ideal for traditional pneumatic rubber approaches, so this is also an opportunity for companies like Michelin to develop their emerging airless technology. —James Morris, Forbes.com, 12 Apr. 2025

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