modem
Concise Oxford English Dictionary © 2008 Oxford University Press:
modem /ˈməʊdɛm/
▶noun a device for interconverting digital and analogue signals, especially to enable a computer to be connected to a telephone line. ▶verb send (data) by modem.
– origin 1950s: blend of modulator and demodulator.
'modem' also found in these Oxford entries:

