A heavy and intense form of heavy metal music with a focus on speed, technical precision, alternate picking, extended guitar solos, and often having aggressive lyrics.

(chemistry) any compound in which hydrogen is bonded chemically to a metal or metalloid element

(chemistry) Any complex of a transition metal combined with carbon monoxide; they are typically volatile solids or liquids, soluble on common organic solvents but insoluble in water; they are highly toxic.

Alternative letter-case form of babbitt metal

Printing type cast from molten metal; hot metal typesetting.

(physics) Any substance that acts as a conductor to electrons of one spin orientation, but as an insulator to those of the opposite orientation

Made half of a metal and half of some other material.

(physics) Of or relating to a half-metal.

(inorganic chemistry, alchemy) A metal resistant to corrosion, oxidizing and tarnishing, such as gold, platinum, copper and mercury.

(music) A subgenre of heavy metal typically employing moderate to fast tempos, heavily distorted guitars, deep growling vocals, blast beat drumming and complex song structures with multiple tempo changes, often having violent or dark lyrics.