1 : the act of conducting or conveying. 2a : transmission through or by means of a conductor; also : the transfer of heat through matter by communication of kinetic energy from particle to particle with no net displacement of the particles â compare convection, radiationb : conductivity.
The name ping-pong was in wide use before English manufacturer J. Jaques & Son Ltd trademarked it in 1901. The name Ping-Pong then came to be used for the game played by the rather expensive Jaques equipment, with other manufacturers calling theirs table tennis.
And as the popularity of the game spread in Europe, two rival organisations were set up in England with the Table Tennis Association and the Ping Pong Association formed within days of each other in 1901. But soon after this time in the history of table tennis it's thought that the game fell out of favour.