Synthesis

Composition, or the putting of two or more things together, as in compounding medicines.

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

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.

The production of complex compounds from simpler ones in biological processes

reasoning from the general to the particular (or from cause to effect)

the combination of ideas into a complex whole

the process of producing a chemical compound (usually by the union of simpler chemical compounds)