modem

1 of 2

noun

mo·​dem ˈmō-dəm 

also

-ˌdem 

plural modems

: a device that converts signals produced by one type of device (such as a computer) to a form compatible with another (such as a telephone) and that is used especially to transmit and receive information between computers via landlines

modem

2 of 2

verb

modemed; modeming; modems

transitive verb

: to send (something, such as data) via a modem

Examples of modem in a Sentence

Recent Examples on the Web

Noun

What is the difference between a router and a modem? —Roxanne Downer, USA Today, 4 July 2025

These systems connected personal computer users, using dial-up modems, to a mainframe running proprietary software. —ArsTechnica, 10 June 2025

The Slate 7 can attach directly to an Ethernet port or else it can be tethered to a smartphone, work as a repeater for a public hotspot or use a cellular modem like a USB dongle plugged directly into the USB port. —Mark Sparrow, Forbes.com, 8 June 2025

My son wanted all of the Internet electronics, including the router, modem and Ethernet switch, mounted to the wall. —Tim Carter, Hartford Courant, 26 Apr. 2025

Word History

Etymology

Noun

modulator + demodulator

First Known Use

Noun

circa 1952, in the meaning defined above

Verb

1984, in the meaning defined above

Phrases Containing modem

• cable modem
• fax modem

Rhymes for modem

• odum

Kids Definition

modem

noun

mo·​dem

ˈmō-ˌdem

: a device that changes signals from one form to a form which can be used by another kind of equipment

computer information is sent over telephone lines using a modem