synthesis
     n 1: the process of producing a chemical compound (usually by the
          union of simpler chemical compounds)
     2: the combination of ideas into a complex whole [syn: {synthetic
        thinking}] [ant: {analysis}]
     3: reasoning from the general to the particular (or from cause
        to effect) [syn: {deduction}, {deductive reasoning}]
     [also: {syntheses} (pl)]
Source: WordNet® 2.0

syntheses
     See {synthesis}
Source: WordNet® 2.0