air pressure

[ air presh-er ]

noun

1. the force exerted by air, whether compressed or unconfined, on any surface in contact with it.

Word History and Origins

Origin of air pressure¹

First recorded in 1870–75

Example Sentences

Get moving, and the barely there fibers present virtually no obstacle to the air pressure generated by your increasing temperature.

From Outside Online

The sheer number of patients has placed such a strain on oxygen systems that some hospitals are struggling to provide adequate air pressure and flow into patients’ lungs.

From Washington Post

At least two or three times per week, Moses sleeps in the hyperbaric chamber, which increases air pressure, accelerates recovery and eases chronic muscle pain.

From Washington Post

The frame buckles around your lower and upper legs and attaches to a small compressor, carried in a backpack, that controls the air pressure.

From Outside Online

A station plot always shows the current temperature on the top left, dew point on the bottom left, and air pressure on the top right.

From Outside Online

Still others, especially the percussion instruments, are struck by hammers that move when the air pressure changes.

From The Daily Beast

The force of the wind was dropping rapidly; so was the air pressure.

From Project Gutenberg

We are now getting the air-pressure through the pipe in both ends of the tube alike, and do not move the pellet either way.

From Project Gutenberg

A final shaping of the bend may be made by heating in a large blowpipe flame and expanding slightly by air pressure.

From Project Gutenberg

After a while, the student will find that he can maintain a steady air pressure and yet breathe with complete comfort.

From Project Gutenberg

The use of such a blowing-tube avoids the inconvenience of raising the work to the mouth when internal air-pressure is required.

From Project Gutenberg