: a sharp sound like that of a striking bullet
: the pulse of sound waves reflected from or emitted by a submerged object in submarine signaling or detection and heard by special apparatus
- Baylor … trained his sound unit from one bearing to another, listening for submarines. It threw out a directional sound beam, a series of "pings." These pings, if they hit a solid object like a submarine, reflected back to the operator.
- —William J. Lederer
: a signal sent from one computer to another across a network for usually diagnostic purposes (as to determine network speed or the status of the target computer)
- With Napster, however, all you have to do is type in the name of the song or artist and up will pop 2,745 Phish songs sorted by the host computer's type of modem connection and ping rate.
- —Karl Taro Greenfeld