What is "metalcore"

n. (context music English) A genre of rock music related to punk and heavy metal

Metalcore is a broad fusion genre of extreme metal and hardcore punk. The word is a blend of the names of the two genres. Metalcore is noted for its use of breakdowns, which are slow, intense passages that are conducive to moshing. Pioneering metalcore bands—such as Integrity, Earth Crisis and Converge, all of which had formed by 1990—are described as leaning more toward hardcore, with their style sometimes being called metallic hardcore, whereas later bands—such as Killswitch Engage, All That Remains, As I Lay Dying, Bullet for My Valentine, and Parkway Drive—are described as leaning more towards metal.

Sepultura, who have been said to have "helped to lay the groundwork" in the 2000s, and Pantera, who influenced Trivium, Atreyu, Bleeding Through and Unearth, have been particularly influential to the development of metalcore in the 2000s. Some bands in the genre have achieved considerable commercial success in this period.