amplification am·pli·fi·ca·tion (ām'plə-fĭ-kā'shən)
The process of increasing the magnitude of a variable quantity, especially the magnitude of voltage, power, or current, without altering any other quality.
The result of such a process.
gene amplification n.
A cellular process characterized by the production of copies of a gene or genes to amplify the phenotype that the gene confers on the cell.