14-Letter Words Containing: P,R,S,T,U

• any four copies; any of four things that correspond to one another exactly

• having four units or components

• reproduce fourfold

• a solid substance in the form of tiny loose particles; a solid that has been pulverized

• the act of grinding to a powder or dust

• annihilation by pulverizing something

• abnormal presence of air in the pleural cavity resulting in the collapse of the lung; may be spontaneous (due to injury to the chest) or induced (as a treatment for tuberculosis)

• of or relating to or characteristic of pachyderms

• emotionally hardened

• be specific about

• a quantum of energy (in a crystal lattice or other system) that has position and momentum and can in some respects be regarded as a particle