1. A device that increases the magnification of a microscope. 2. An electronic apparatus that increases the strength of input signals.
- image a. a device for converting a low light level fluoroscopic image to one that can be seen by the eye in a lighted environment; usually consists of an electronic light a. chained to a television tube. SYN: image intensifier.
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am·pli·fi·er 'am-plə-.fī(ə)r n one that amplifies specif an electronic device (as in a computer or sound-reproducing system) for amplifying voltage, current, or power
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am·pli·fi·er (amґplĭ-fi″ər) 1. an electronic device that increases the strength of an input signal. 2. an apparatus for increasing the magnification of a microscope.Medical dictionary. 2011.