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

• plump
• shapely
• curvaceous
• curvy

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

My worry is that AI use becomes ubiquitous enough that the label becomes meaningless—like saying a house was built with a pneumatic brad nailer versus a hammer. —Dave Smith, Fortune, 2 Sep. 2025

Hunters may use all archery equipment, muzzle-loading guns, shotguns, centerfire rifles, revolvers and pistols and pre-charge pneumatic air guns to harvest bears. —Jennifer Borresen, USA Today, 13 Aug. 2025

This avoids the size and complexity of magnetic levitation systems that require large magnets or pneumatic setups that depend on pressurized gas. —Aamir Khollam, Interesting Engineering, 12 Aug. 2025

In the early days, the robotic characters were powered by pneumatic systems and programmed on a device called an Animation Console which features a silhouette of the figure with an array of knobs and buttons on it. —Caroline Reid, Forbes.com, 21 July 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