From the French for the International Radio Consultative Committee, an International Telecommunications Union (ITU) (United Nations) body that mainly sets international standards for radio and satellite telecommunications.
Consultative Committee International Radio. The European video standard for monochrome television transmission which specifies 625 lines per frame, divided into two interlaced fields, and a 25 HZ frame rate.
Commite Consultatif International Radiotelegraphique. This is a standards committee of the International Telecommunications Union, who have made the technical recommendation for the European 625 line standard for video signals.