Metalloid

A metalloid is a type of chemical element which has properties in between, or that are a mixture of, those of metals and nonmetals.

A metalloid is an element with properties intermediate between those of metals and nonmetals (e.g., silicon).

By some they [metals of the alkalies] were called metalloids; by some their simple nature was objected to

Graham Massey of 808 State turns a Björkian moan into a vibrating siren and powers his strangely metalloid version of "Army Of Me" with it; the Brodsky String Quartet turns "Hyperballad" into a stately 3-D chess game.

It expanded from bleary delay rippling with looped phrases to embrace molten metalloid raunch and blues grit, acoustic guitars and pedal steels.