amplifier
UK/'æmplifaiә/US
B2
Definitions
n.
A device that increases the strength of an electrical or audio signal.
放大器，功放，扩音器。
Root Breakdown
Root-derivedampl (large) + fi (from facere, make) + -er (agent) = 'the thing that makes larger.' It is the agent noun of amplify — the box that takes a weak signal and pumps it up. Casually shortened to 'amp.'
Root ampl still carries 3 more wordsCommon Collocations
- 1.guitar amplifier吉他音箱
- 2.audio amplifier音频放大器
- 3.power amplifier功率放大器
Example Sentences
- 1.
He plugged his guitar into the amplifier and turned up the volume.
- 2.
The signal is too weak to use without an amplifier.
- 3.
She bought a new amp for her home recording setup.