[ ik-span-der ]
/ ɪkˈspæn dər /


a person or thing that expands.
Also ex·pan·dor. Electronics. a transducer that produces an output with a range of voltages greater than that of the input signal.Compare compressor(def 5).

Origin of expander

First recorded in 1860–65; expand + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for expander

British Dictionary definitions for expander

/ (ɪkˈspændə) /


a device for exercising and developing the muscles of the bodya chest expander
an electronic device for increasing the variations in signal amplitude in a transmission system according to a specified lawCompare compressor (def. 5), compander
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012