expander

expander

[ik-span-der]
noun
1.
a person or thing that expands.
2.
Also, expandor. Electronics. a transducer that produces an output with a range of voltages greater than that of the input signal. Compare compressor ( def 5 ).

Origin:
1860–65; expand + -er1

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
expander (ɪkˈspændə)
 
n
1.  a device for exercising and developing the muscles of the body: a chest expander
2.  compressor Compare compander an electronic device for increasing the variations in signal amplitude in a transmission system according to a specified law

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