Short for adenosine monophosphate. An organic compound that is composed of adenosine and one phosphate group. It is one of the nucleotides present in DNA and RNA, and is also the fundamental component of ATP and ADP. During certain cellular metabolic processes, AMP forms from ADP when the latter loses a phosphate group, and AMP forms ADP by acquiring a phosphate group. Chemical formula: C10H14N5O7P.
A device that converts electric signals to audible sound, especially one that is freestanding or part of an electronic device such as a television.
A loudspeaker designed to reproduce bass frequencies.
A small loudspeaker designed to reproduce high-pitched sounds in a high-fidelity audio system.
A room used in recording and broadcasting to increase resonance, produce echo effects, etc.
A large, funnel-shaped device for increasing the volume of the voice and directing it
One who makes unauthorized use of a computer, especially to tamper with data or programs.
A complex, interconnected group or system:
A boat, usually a coastal or river steamer, that plies a regular route and carries passengers, freight, and mail.
A device that attenuates an electrical signal.
An apparatus or device for indicating the presence of something, as electric waves
(Radio) A circuit for demodulating frequency-modulated or phase-modulated carrier waves
Part or all of this entry has been imported from the 1913 edition of Webster's Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(Econ.) The ratio between the total increase in income (resulting from the stimulating effect of an initial expenditure) and the initial expenditure itself
In a radio, phonograph, etc., an auxiliary amplifier for boosting the voltage of a weak signal before it reaches the input of the main amplifier
The definition of a microphone is something you talk into that magnifies your voice or makes it louder.
Find another word for amplifier. In this page you can discover 41 synonyms, antonyms, idiomatic expressions, and related words for amplifier, like: convertor, amp, speaker, loudspeaker, amplifying device, amplifying mechanism, high-fidelity speaker, stereo speaker, woofer, tweeter and hearing-aid.