compressibility

[kuhm-pres-uh-bil-i-tee]
noun, plural compressibilities for 2.
1.
the quality or state of being compressible.
2.
Physics. the reciprocal of the bulk modulus, equal to the ratio of the fractional change in volume to the stress applied to a body.

Origin:
1685–95; compressible + -ity

noncompressibility, noun
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World English Dictionary
compressibility (kəmˌprɛsɪˈbɪlɪtɪ)
 
n
1.  the ability to be compressed
2.  physics k the reciprocal of the bulk modulus; the ratio of volume strain to stress at constant temperature

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Example sentences
The main problem facing these pilots was the aerodynamic condition known as compressibility.
The numerical value of the compressibility depends both on the temperature and on the pressure too.
At high pressures, and high pressure drops, compressibility affects flow.
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