air pressure
18
2.2
- noun
- /ɛr ˈprɛʃər/
- Specialized
:
presión atmosférica
- At slightly higher altitudes, the air pressure is identical to what one will find on the surface of Mars.
- changes in air pressure
- air pressure systems
That greater air pressure is going to take longer to exhale.
- That greater air pressure is going to take longer to exhale.
- And you know this because as you ascend a mountain, the air pressure drops.
- And that sound wave is made-up of areas of high and low air pressure.
- So the things that work best are things that have a lot of damping but are also very light so that they move very readily with changes in air pressure.
- plus, uh, air pressure through my tongue and lips?
- Basically the they have less air pressure, so they're not really using their air.
- Maybe you're low on tire air, air pressure.
Examples
-
In the physical science collection, teachers can choose from programs with lessons on air pressure and electricity.
Academic text (2003) -
Rackham reached down and undogged his helmet; the abrupt increase in air pressure hurt his ears.
Fiction book (2000) -
And the air pressure inside was, was pretty high.
-
And we think it's because of the air pressure at least.
-
"And today, the air pressure is a few points higher than yesterday.
Fiction book (2002) -
And check the air pressure in the tires, too.
-
The air pressure outside the sphere holds the two of them together as you can see.
-
There are places on Mars where the temperature and the air pressure, the atmospheric pressure are just right.
-
The attendant monitored the air pressure on a gauge near his station.
Fiction book (1995) -
The air pressure inside the balloon increased as it was heated.
Synonyms
7
4.0
The weight of the air around us that changes with the weather
6
4.2
The weight of the air pressing on the ground and on things
Antonyms
How High
Surface Forms
Morphology
The meaning is directly and compositionally derived from 'air' (the atmosphere) + 'pressure' (force applied to a surface): together they denote the force exerted by the air. This noun–noun compound follows a common, cross-linguistic scientific naming pattern, so a B1 learner who knows the constituents will readily infer the meaning.
Etymology
The noun air pressure comes from a simple image: the air around us has weight and 'presses' down like an invisible blanket, so we talk about the pressure it makes. That's why air pressure means the amount of that 'push' and why changes in it affect the weather and how you feel.