ampli-, ampl-

(Latin: large, enlargement, spacious; comprehensive; enough, more than enough)

gene amplification (s) (noun), gene amplifications (pl)
A selective replication of a specific gene or genes disproportionate to their representation in the parent molecule; such as, that which occurs in specific cells in response to signals of cell development or to stresses from the environment: "In humans, gene amplification is seen more often in malignant cells."
Melius bene imperare quam imperium ampliare.
Translation: "It is more important to reign the empire well than to increase it."

Motto of King Rudolf of Habsburg, Germany (1273-1291).

preamplifier (s) (noun), preamplifiers (pl)
An electronic circuit or device that detects and strengthens weak signals, as from a radio receiver, for subsequent, more powerful increasing stages: A preamplifier is part of the electronic circuit in a radio or a television, designed to reinforce very inadequate electrical waves for better transmission.
voltage amplification (s) (noun), voltage amplifications (pl)
The increasing of an input-signal voltage to produce a higher output-signal voltage: "The ratio of the magnitude of the voltage amplification across a specified load impedance to the magnitude of the input voltage of the amplifier or other transducer feeding that load is often expressed in decibels by multiplying the common logarithm of the ratio by 20."