Definition of Distilation
Dis`til*la"tion (?), n. [F.
distillation, L. destillatio.] 1.
The act of falling in drops, or the act of pouring out in
drops.
2. That which falls in drops. [R.]
Johnson
3. (Chem.) 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.
&fist; The evaporation of water, its condensation into clouds, and
its precipitation as rain, dew, frost, snow, or hail, is an
illustration of natural distillation.
4. The substance extracted by
distilling. Shak.
Destructive distillation (Chem.), the
distillation, especially of complex solid substances, so that the
ultimate constituents are separated or evolved in new compounds, --
usually requiring a high degree of heat; as, the destructive
distillation of soft coal or of wood. -- Dry
distillation, the distillation of substances by
themselves, or without the addition of water or of other volatile
solvent; as, the dry distillation of citric acid. --
Fractional distillation. (Chem.) See
under Fractional.
- Webster's Unabridged Dictionary (1913)
- The act of falling in drops, or the act of pouring out in drops.
- That which falls in drops.
- 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.
- The substance extracted by distilling.
- The Nuttall Encyclopedia
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