The term 'Olympic Projectile' refers to two different sports equipment used in the Olympic Games. The first is a DISC, which is a small, round object made of metal or plastic that is thrown as part of the sport of DISCUS throwing. The second is a DISCUS, which is a heavier, larger version of the DISC that is also thrown as part of the same sport. Both the DISC and the DISCUS are used in the Olympics as part of the track and field events.