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Pronunciation:  `dis'tleyshun

WordNet Dictionary
  1. [n]  the process of purifying a liquid by boiling it and condensing its vapors
  2. [n]  a purified liquid produced by condensation from a vapor during distilling; the product of distilling

DISTILLATION is a 12 letter word that starts with D.


 Synonyms: distillate, distillment
 See Also: action, activity, liquid, natural action, natural process



Webster's 1913 Dictionary
\Dis`til*la"tion\, n. [F. distillation, L.
1. The act of falling in drops, or the act of pouring out in

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

Note: 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}.

Biology Dictionary
 Definition: A lab technique used to purify a substance, to remove a solvent (a liquid that a substance is dissolved in) from the substance, or to separate two or more components in a liquid mixture.

Ideally, this is done by taking advantage of the fact that the different chemicals have different boiling points. The temperature is raised so the chemical with the lowest boiling point boils first, its vapor is shunted out of the flask and towards a different container, and then it is cooled so that it condenses back into a (more purified) liquid. The temperature can then be raised to boil the next chemical, etc., until only the chemical with the highest boiling point remains in the original container.

Thesaurus Terms
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