DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   Ping
       n 1: a river in western Thailand; a major tributary of the Chao
            Phraya [syn: Ping, Ping River]
       2: a sharp high-pitched resonant sound (as of a sonar echo or a
          bullet striking metal)
       v 1: hit with a pinging noise; "The bugs pinged the lamp shade"
       2: sound like a car engine that is firing too early; "the car
          pinged when I put in low-octane gasoline"; "The car pinked
          when the ignition was too far retarded" [syn: pink, ping,
          knock]
       3: make a short high-pitched sound; "the bullet pinged when they
          struck the car"
       4: contact, usually in order to remind of something; "I'll ping
          my accountant--April 15 is nearing"
       5: send a message from one computer to another to check whether
          it is reachable and active; "ping your machine in the office"