The Collaborative International Dictionary of English v.0.48:
Condensation \Con`den*sa"tion\, n. [L. condensatio: cf. F.
1. The act or process of condensing or of being condensed;
the state of being condensed.
He [Goldsmith] was a great and perhaps an unequaled
master of the arts of selection and condensation.
2. (Physics) The act or process of reducing, by depression of
temperature or increase of pressure, etc., to another and
denser form, as gas to the condition of a liquid or steam
3. (Chem.) A rearrangement or concentration of the different
constituents of one or more substances into a distinct and
definite compound of greater complexity and molecular
weight, often resulting in an increase of density, as the
condensation of oxygen into ozone, or of acetone into
Condensation product (Chem.), a substance obtained by the
polymerization of one substance, or by the union of two or
more, with or without separation of some unimportant side
Surface condensation, the system of condensing steam by
contact with cold metallic surfaces, in distinction from
condensation by the injection of cold water.