°A high-pitched, short and somewhat sharp sound.
"My car used to make an odd ping, but after the last oil change it went away."
°A pulse of high-pitched or ultrasonic sound whose echoes provide information about nearby objects and vessels.
"The submarine sent out a ping and got an echo from a battleship."
verb
°To make a high-pitched, short and somewhat sharp sound.
"My car was pinging until my last oil change."
°To emit a signal and then listen for its echo in order to detect objects.