Syn"the*sis (?), n.; pl.
Syntheses (#). [L., a mixture, properly, a putting
together, Gr. ?, fr. ? to place or put together; sy`n
with + ? to place. See Thesis.] 1.
Composition, or the putting of two or more things together, as in
2. (Chem.) The art or process of making
a compound by putting the ingredients together, as contrasted with
analysis; thus, water is made by synthesis from hydrogen
and oxygen; hence, specifically, the building up of complex compounds
by special reactions, whereby their component radicals are so grouped
that the resulting substances are identical in every respect with the
natural articles when such occur; thus, artificial alcohol, urea,
indigo blue, alizarin, etc., are made by synthesis.
3. (Logic) The combination of separate
elements of thought into a whole, as of simple into complex
conceptions, species into genera, individual propositions into
systems; -- the opposite of analysis.
Analysis and synthesis, though commonly treated
as two different methods, are, if properly understood, only the two
necessary parts of the same method. Each is the relative and
correlative of the other. Sir W. Hamilton.