the world > space > shape > misshapenness > [noun] > action or fact of putting or being out of shape > as result of pressure or strain > instrument for measuring deformation (3)
An instrument for measuring the deflection or deformation of a body, esp. a metal bar, under stress.
An instrument for measuring the deformation of metal under stress, or an instrument in which such deformation is used to register the elastic…
An instrument for measuring deformation. Also attributive.