amplification

nouns

addition of extra material or illustration or clarifying detail
"a few remarks added in amplification and defense"; "an elaboration of the sketch followed"
amplification, elaboration
the amount of increase in signal power or voltage or current expressed as the ratio of output to input
amplification, gain
(electronics) the act of increasing voltage or power or current
amplification
domain category
a physical phenomenon associated with stationary or moving electrons and protons
electricity
is a type of (narrower)
the act of increasing something
"he gave me an increase in salary"
increase, step-up