Definition of "multicasting"

multicasting

noun
countable and uncountable, plural multicastings
1. (networking) The simultaneous transmission of data to several destinations on a network.
  Quotations
  Unlike broadcasting, multicasting allows each host to choose whether it wants to accept multicast packets.
  2009, Robert Rümmler, Alexander Daniel Gluhak, Hamid Aghvami, Multicast in Third-Generation Mobile Networks: Services, Mechanisms and Performance, John Wiley & Sons, page 14