noun that which falls in drops.
2. distillation ·noun the substance extracted by distilling.
3. distillation ·noun the act of falling in drops, or the act of pouring out in drops.
4. distillation ·noun the separation of the volatile parts of a substance from the more fixed; specifically, the operation of driving off gas or vapor from volatile liquids or solids, by heat in a retort or still, and the condensation of the products as far as possible by a cool receiver, alembic, or condenser; rectification; vaporization; condensation; as, the distillation of illuminating gas and coal, of alcohol from sour mash, or of boric acid in steam.