Can be looked at in two ways:
1) Punk Rock/Melodic Hardcore influenced Metalcore
2) Nu Metal influenced Hardcore

A relatively new sub genre, it has begun to rise to prominence in mid to late 2010, with bands like Bring Me The Horizon and Architects adding very prominent melodic hardcore/punk rock elements to their Metalcore sound. A possible reason for this is the decline in appeal for traditional heavy metal, which is what lead to nu metal originating in the mid to late 90's.

Obvious influences include Comeback Kid, Alexisonfire and early Thrice.

Another example of this hardcore adding in nu metal elements such as rapping/hip hop beats etc whilst still keeping some 'heavy metal' characteristics such as occasional double bass drum beats.

A perfect example of this is Deez Nuts, which is a 'solo' project from JJ Peters, the drummer of now disbanded Metalcore outfit I Killed the Prom Queen.

How long this sub genre will flourish for is anyone's guess, but it will definitely be a favourite amongst the younger audience.
Architects (UK) went from tech metal, to metalcore and now to nu metalcore. They must be really trying to sell those albums...
by http://heavymetalist.com February 1, 2011
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Christian hardcore punks attempting (and failing at) metal music.
Underoath is a christian metalcore band, there next DVD is entitled 777.
by Metal6head January 5, 2008
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In the 90s, hardcore bands started to infuse metal into their sound - some examples being Earth Crisis, Integrity and Vision of Disorder. This sound was known at the time as “metallic hardcore”. The most commercially successful of this era being Hatebreed. Eventually, this genre became known as “metalcore”. In the late 90s/early 00s, members of the hardcore scene also became fans of melodic death metal bands, such as In Flames and (especially) At the Gates. The original metalcore sound was combined with melodic death metal riffs and clean vocals (usually in the chorus), and the most popular style of metalcore was born. This is actually called melodic metalcore, and besides the first few bands who originated and popularised this sound, has little to nothing to do with the original metalcore bands, who came from the hardcore scene and still had a lot of hardcore influence in their music. There are still bands in metalcore who play a sound similar to the 90s bands. A few examples being Knocked Loose, Kublai Khan TX, Boundaries and Incendiary. These bands have roots in the hardcore scene and you can hear the hardcore influence still in their music.
Uneducated metal elitist: “Metalcore is awful, it’s crap for emo and scene kids, Bring Me the Horizon make me sick!!”

Hardcore kid who also likes metal: “That’s melodic metalcore, real metalcore is Earth Crisis and Integrity! You metalheads are sooo uneducated, now go back listening to your racist little black metal!!!”
by Grojnad August 27, 2023
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A type of metal that is mixed with hardcore to create metalcore, popular metalcore bands include killswitch engage, Ocean sleeper,escape the fate and many more Amazing bands, metalcore is usually hated by people that don't understand the cultre and the amazing sound of the heavy guitars with double bass drum,Vocalists will usually perform deep heavy vocals for breakdowns and lighter vocals for the chorus
Guy 1: What's your favorite type of metal

Guy 2: Definitely Metalcore
by barb_wire August 28, 2019
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The worst subgenre of metal by miles
1: Check out this new metalcore band i found on spotify!

2: You listen to metalcore? that shit's wack.
by Cruned June 28, 2023
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