noun

• (heading) Chemical elements or alloys, their ores, and the mines where their ores come from.
  "Manganism has been known about since the 19th century, when miners exposed to ores containing manganese, a silvery metal, began to totter, slur their speech and behave like someone inebriated."
• (heading) Chemical elements or alloys, their ores, and the mines where their ores come from.
  "But then I had the flintlock by me for protection. ¶ There were giants in the days when that gun was made; for surely no modern mortal could have held that mass of metal steady to his shoulder. The linen-press and a chest on the top of it formed, however, a very good gun-carriage; and, thus mounted, aim could be taken out of the window[…]."
• (heading) Chemical elements or alloys, their ores, and the mines where their ores come from.
  "Most of the matter in stars is hydrogen and helium, and the metals (including carbon, nitrogen, oxygen, and so on) were cooked up inside stars."
• (heading) Chemical elements or alloys, their ores, and the mines where their ores come from.
  "One of the most important tasks was the metalling of the roads, and the dumping of metal beside them in parts where it was impossible to lay it, in order that work might commence with the assault. The surface of the roads was good, but only because the Division had been holding a front so wide, which made the traffic upon them relatively light."

adj

• (music) Characterized by strong drum-beats and distorted guitars.