Definition of “pinger”
noun:
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A device that emits a short, high-pitched sound bust (i.e. goes, "ping!") such as in sonar or other echo location systems.
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A device that periodically emits a signal that can be monitored to permit movement tracking.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
A computer program that sends a ping message over a network.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
A user of a ping program; one who pings.
from Wiktionary, Creative Commons Attribution/Share-Alike License
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