incompressibility

noun2

1. •
   The quality of being incompressible, of not compressing under pressure

   • Water has a high degree of incompressibility.
2. •
   The bulk modulus or modulus of incompressibility, measured in either electron volts or dynes per square centimeter.

   • The value 120 MeV for the incompressibility is unrealistically small when compared with the value ~180-240 MeV! — 1997