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The Collaborative International Dictionary

Compressibility \Com*press`i*bil"i*ty\, n. [Cf. F. compressibilit['e].] The quality of being compressible of being compressible; as, the compressibility of elastic fluids.


n. 1 the degree to which something is compressible 2 (context thermodynamics English) the product of pressure and molar volume divided by the product of the gas constant and the absolute temperature


n. the property of being able to occupy less space [syn: squeezability, sponginess] [ant: incompressibility]


In thermodynamics and fluid mechanics, compressibility is a measure of the relative volume change of a fluid or solid as a response to a pressure (or mean stress) change.

$$\beta=-\frac{1}{V}\frac{\partial V}{\partial p}$$

where V is volume and p is pressure.

Usage examples of "compressibility".

Chunks of metal and crystal in the outer hull, different compressibilities, and they compress to destruction.

He’d have to be alert for the first hint of vibration which would indicate compressibility troubles.

He felt the onset of compressibility vibration, and hastily cut back the revs of the engines.

The last of the new stars had formed eternities before, as the last huge gas cloud shuddered into motion as a compressibility wave jolted it and caused it to crash together to form a new star.

Even at the best of times, Don would have passed it by somewhat hastily, with a lame: “I’ve never been into the math, but it seems that if you take the compressibility and temperature curves this is what happens….

It was black and deep and hard under his feet, and he missed the slick compressibility of ice.