pinger
Pronunciation:
noun
Definitions
A device that emits a short, high-pitched sound burst, such as in sonar or other echo location systems.
Example: We couldn't take the boat into the shallows near the reef because our sonar pinger was broken.
A device that periodically emits a signal that can be monitored to permit movement tracking.
Example: The scientist attached a pinger to the carapace of the sea turtle to track its migration.
A computer program that sends a ping message over a network.
Example: Some people like fancy pingers with extra features, but I always use the default ping application.
A user of a ping program; one who pings.
Example: Every time we replace the main page, we get flooded with pingers making sure our web site is still there.