15-Letter Words Containing: O,M,F,I,E,S,T

• A device that uses diffraction (especially X-ray diffraction) to investigate the structure of matter.

• the act of distorting something so it seems to mean something it was not intended to mean

• impressive difficulty

• phenomenon exhibited by materials like iron (nickel or cobalt) that become magnetized in a magnetic field and retain their magnetism when the field is removed