13-Letter Words Containing: A,P,R,T,U

• A group of four things.

• 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

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

• having four units or components

• reproduce fourfold

• Any qualified majority, specified in advance of a vote, required for the vote to be passed

• 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

• therapy designed to produce immunity to a disease or to enhance resistance by the immune system

• (especially of certain insects) having very short or rudimentary wings