Metal rock is a genre of music that combines elements of heavy metal and hard rock. It is characterized by aggressive guitar riffs, distorted vocals, and powerful drumming. The term 'metal rock' was first used in the early 1980s to describe bands such as Iron Maiden, Judas Priest, and Motörhead. The crossword solution for the term metal rock is 'ORE, ' which refers to a type of rock that contains valuable metals or minerals. ORE is mined from the earth and then processed to extract the valuable metals or minerals.