<p><strong>Noun</strong></p><ul><li>the combining of the constituent elements of separate material or abstract entities into a single or unified entity (analysis).</li><li>a complex whole formed by combining.</li><li>Chemistry: the forming or building of a more complex substance or compound from elements or simpler compounds.</li><li>Philosophy: the third stage of argument in Hegelian dialectic, which reconciles the mutually contradictory first two propositions, thesis and antithesis.</li><li>Biology: modern synthesis, a consolidation of the results of various lines of investigation from the 1920s through the 1950s that supported and reconciled the Darwinian theory of evolution and the Mendelian laws of inheritance in terms of natural selection acting on genetic variation.</li><li>Psychology, Psychiatry: the integration of traits, attitudes, and impulses to create a total personality.</li></ul>