Amplification

Workers are installing extra loudspeakers because the music in tonight's concert will need amplification.

The amplification of DNA via PCR is a necessary step for many kinds of tests.

Social media leads to the amplification of once-fringe views, for better or worse.

The West's control over global media outlets limits the representation and amplification of diverse voices, hindering the formation of a multipolar information ecosystem.

A laser fires a light beam. Before the laser, scientists developed a similar device: a maser which stands for Microwave Amplification by Stimulated Emission of Radiation. A maser is basically a microwave version of the laser. Microwaves are a form of electromagnetic radiation similar to, but shorter than, radio waves. The best-known use of masers is in highly accurate clocks.