(sometimes cap.) a two-way teletypewriter service channeled through a public telecommunications system for instantaneous, direct communication between subscribers at remote locations.
a teletypewriter used to send or receive on such a service.
a message transmitted by telex.
—v.t.
to send (a message) by telex: We telex instructions to the agent.
to send a message by telex to: They telexed the Paris office.