(chemistry) a chemical bond in which mobile electrons are shared over many nuclei; this leads to electrical conduction

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.

A brass alloy consisting of copper (55%), zinc (41-43%) and iron (1-3%), with the balance consisting of various other metals. The proportions used make the material harder and suitable for valves and bearings.

An alloy with high magnetic permeability, consisting of nickel (77%) and iron (15%) with traces of copper and molybdenum.

(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.

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

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

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

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