Actually, I believe it is called Discus.
Discus dis·cus [dis-kuhs]- noun 1. disk for throwing in athletic competition
Dis·cuss [dih-skuhs]- verb (used with object) 1. to consider or examine by argument, comment, etc. - Related Forms well-dis·cussed- adjective dis·cuss·er- noun re·dis·cuss- verb