Definitions for "Bulk Modulus"
The bulk modulus measures the elastic response to hydrostatic pressure.
The modulus of elasticity for a material subjected to compression on all surfaces—that is, volume stress. Bulk modulus is the relationship of volume stress to volume strain, expressed as the ratio between / and dV/Vo, wheredV is the change in volume and Vo is the original volume.
the ratio of pressure to the resulting compressional strain.