pinger
(noun) a pulse generator used for echo sounding in sonar
Source: WordNet® 3.1
pinger (plural pingers)
A device that emits a short, high-pitched sound burst, such as in sonar or other echo location systems.
A device that periodically emits a signal that can be monitored to permit movement tracking.
A computer program that sends a ping message over a network.
A user of a ping program; one who pings.
(slang) An illicit drug, especially ecstasy, taken for recreational purposes.
Source: Wiktionary
8 May 2025
(noun) the act of protecting something by surrounding it with material that reduces or prevents the transmission of sound or heat or electricity
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