There is no real title for an athlete that throws the discus or javelin - they are simply referred to as javelin or discus throwers, or more generally as throwers, field event athletes, etc.
Discus
idian won the 2004 discus event
Yes, the discus is a track and field event. A heavy disc, called a discus is thrown, the longest throw wins the game.
discus
Al Oerter (Discus)
Take your pick: Shot Putt, Discus, Hammer, Javelin
A discus, which is a metal-edged heavy wood disk. A level grass field with an area marked for the discobolus (disk-thrower) and a tape measure to check the landing distance.
There are 6 field event in a decathlon: Long Jump, Shot Put, High Jump, Discus Throw, Pole Vault, and Javelin
Dialogue is the proper word for the ancient Greek meaning discuss If the question refers to the discus - the athletic throwing event in the track and field competition which is an Olympic Games sport then we have the word discos/ δίσκος.
History has not recorded who invented the discus but the event is believed to have been begun by the ancient Greeks. The discus throw was an event of the ancient Olympic Games of Greece held in 776 B.C. The ancient discus was made of stone, iron, bronze, or lead, and was shaped like a flying saucer. The winner of the discus throw was awarded the disc as a prize for winning the event.
The athlete that throws the discus the farthest is considered the winner of the event.