amplification
     n 1: addition of extra material or illustration or clarifying
          detail; "a few remarks added in amplification and
          defense"; "an elaboration of the idea followed" [syn: {elaboration}]
     2: the amount of increase in signal power or voltage or current
        expressed as the ratio of output to input [syn: {gain}]
     3: (electronics) the act of increasing voltage or power or
        current
Source: WordNet® 2.0