13-Letter Words Containing: A,I,R,S,T,Y

• therapy that uses physical agents: exercise and massage and other modalities

• the formation of crystals

• attempting to justify or defend in speech or writing

• providing justification

• remedy that prevents or slows the course of an illness or disease

• contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse

• capable of preventing conception or impregnation

• warding off

• preventing or contributing to the prevention of disease

• Any solid with conventional crystalline properties but exhibiting a point group symmetry inconsistent with translational periodicity

• To crystallize again; especially as a means of purification.

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