A metal with a certain gravity more than about 5.0, especially one that's poisonous, such as for instance lead or mercury.
Music really loud, brash rock songs, usually with shouted, violent words.
Any metal which have a particular gravity higher than about 5, specifically one, including lead, that's toxic that will be a hazard in environment.
A genre descended from rock songs, characterized by huge noise, very amplified distortion, and overall loudness, usually with extensive electric guitar solos, complex song frameworks, fast emphatic beats, and words that involve violent or great imagery.
a metal of reasonably high-density (specific gravity more than about 5) or of large general atomic fat (especially one that's toxic like mercury or lead)
loud and harsh-sounding stone songs with a powerful beat; lyrics often include violent or fantastic imagery