pneu·​mat·​ic | \ nu̇-ˈma-tik How to pronounce pneumatic (audio) , nyu̇- \

Definition 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

Keep scrolling for more

Other Words from pneumatic

pneumatically \ nu̇-​ˈma-​ti-​k(ə-​)lē How to pronounce pneumatic (audio) , nyu̇-​ \ adverb
pneumaticity \ ˌnü-​mə-​ˈti-​sə-​tē How to pronounce pneumatic (audio) , ˌnyü-​ \ noun

Synonyms for pneumatic


Visit the Thesaurus for More 

Examples of pneumatic in a Sentence

Recent Examples on the Web The 2018 data also reveal that in the production segment, about 70% of emissions were due to pneumatic devices, 9% were due to equipment leaks, and only 7% were due to venting and flaring of associated gas. Ian Palmer, Forbes, "Why Good Data Is Crucial To Evaluate Under-The-Radar Methane Emissions Around The World," 24 Feb. 2021 On Sunday, Virgin Hyperloop sent two passengers through its pneumatic maglev train for the first time. Courtney Linder, Popular Mechanics, "Humans Have Taken Their First Trip Inside a Hyperloop," 11 Nov. 2020 Pneumatic tubes generally weren't built outside big cities, or to individual homes, because the cost of doing so wasn't practical, according to Holly Kruse, a Rogers State University professor who has researched pneumatic tubes. Matt Mcfarland, CNN, "Hyperloop wants to change the world. Not everyone's convinced.," 20 Nov. 2020 The underlying technology, of course, is a combination of pneumatic tubes and contactless levitation. Courtney Linder, Popular Mechanics, "Humans Have Taken Their First Trip Inside a Hyperloop," 11 Nov. 2020 As early as the 1890s, cities like Philadelphia and New York were using miles of underground pneumatic tubes to shunt mail around town. Nicolás Rivero, Quartz, "City garbage collection is finally getting the disruption it deserves," 30 Sep. 2020 Hiding his true vision, Beach managed to gain city permits to build small pneumatic tubes belowground to carry mail and later snuck through an amendment that allowed a single, large tube that ostensibly would hold the smaller tubes. Katherine Harmon Courage, Scientific American, "The First Subway in New York City Was a Cylindrical Car Pushed by Air," 18 Aug. 2020 The seeds of Trotter’s success story were planted 25 years ago, when the bus from Ohio pulled into that rough old bus station in D.C. and announced his arrival with a pneumatic exhale. Washington Post, "This couple hit their stride after years of hard work. Then covid-19 hit them.," 3 Dec. 2020 Gore said the plant uses a pneumatic system to blow a powder through its emissions to remove HCl, but that system was not functioning properly when the test was conducted because the powder was too wet. Dennis Pillion |, al, "Alabama Power fined for air pollution violation at Mobile County plant," 12 Nov. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pneumatic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of pneumatic

1624, in the meaning defined at sense 2

History and Etymology for pneumatic

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

Keep scrolling for more

Learn More about pneumatic

Time Traveler for pneumatic

Time Traveler

The first known use of pneumatic was in 1624

See more words from the same year

Statistics for pneumatic

Last Updated

28 Feb 2021

Cite this Entry

“Pneumatic.” Dictionary, Merriam-Webster, Accessed 5 Mar. 2021.

Style: MLA
MLA Chicago APA Merriam-Webster

Keep scrolling for more

More Definitions for pneumatic



English Language Learners Definition of pneumatic

: using air pressure to move or work
: filled with air
US, informal, of a woman : having a body with full, pleasing curves


pneu·​mat·​ic | \ nu̇-ˈma-tik How to pronounce pneumatic (audio) , nyu̇- \

Kids Definition of pneumatic

1 : moved or worked by air a pneumatic drill
2 : made to hold or be inflated with compressed air pneumatic tires


pneu·​mat·​ic | \ n(y)u̇-ˈmat-ik How to pronounce pneumatic (audio) \

Medical Definition of pneumatic

: 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

Other Words from pneumatic

pneumatically \ -​i-​k(ə-​)lē How to pronounce pneumatic (audio) \ adverb

Keep scrolling for more

Comments on pneumatic

What made you want to look up pneumatic? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Who Knew?

Spell It

Can you spell these 10 commonly misspelled words?

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!