a device that connects into a telephone circuit and transmits a periodic signal as an indication that the conversation over the circuit is being recorded.
a similar device attached to a free-ranging animal as an aid to learning its habits; biotelemeter.
Also called pager. a pocket-size electronic device whose signal notifies a person of an important message, sometimes displaying the telephone number to be called.
更多beeper例句
Your Beeper of the Seals wants to get the power into his own hands, and betrays you; he who quits the field loses it.
There were clanging bells and sirens and beeper-horns warning all nonofficial vehicles to keep out of the way.