'amplification' definitions:

Definition of 'amplification'

(from WordNet)
noun
Addition of extra material or illustration or clarifying detail; "a few remarks added in amplification and defense"; "an elaboration of the sketch followed" [syn: amplification, elaboration]
noun
The amount of increase in signal power or voltage or current expressed as the ratio of output to input [syn: amplification, gain]
noun
(electronics) the act of increasing voltage or power or current

Synonyms of 'amplification'

From: Moby Thesaurus