(construction) finely graded iron particles combined with an oxidizing catalyst. When mixed with water (or water, cement and sand), the finely distributed particles expand, creating a waterproof layer that becomes part of the surface to which it is applied.

Any tin- or lead-based alloy. / (UK, auctions) Silver that cannot be labeled as silver in the UK because it does not bear an Assay Office mark. / Any silvery or whitish metal or alloy.

a musical genre, a mixture between emo and metal music

(metallurgy) A metal, such as molybdenum or tungsten, with a high refraction, and hence a high melting point.

(music) a genre of heavy metal with a Christian theme

(chemistry, obsolete) Any of the four metals aluminum, gallium, indium and thallium of the boron group in the periodic table of elements.

An abrasive, distorted subgenre of heavy metal music influenced by hardcore punk and doom metal.

An alloy of tin, copper, and mercury, sometimes formerly used for the bearings and packings of machinery.

A hard alloy of about four parts of copper to one of tin, used for making bells.

A class where metalwork is taught. / The room where these classes take place. / A shop that deals in metalworking