noun the condition of being pure.
2. purity ·noun cleanness; freedom from foulness or dirt.
3. purity ·noun freedom from any sinister or improper motives or views.
4. purity ·noun freedom from foreign idioms, or from barbarous or improper words or phrases; as, purity of style.
5. purity ·noun freedom from guilt or the defilement of sin; innocence; chastity; as, purity of heart or of life.
6. purity ·noun freedom from foreign admixture or deleterious matter; as, the purity of water, of wine, of drugs, of metals.