a form of brass, being an alloy of about 80% copper and 20% zinc, produced in thin sheets and used to make cheap jewelry

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

(metallurgy) Of or relating to metallurgy, the study of metals and their properties.

(medicine) A staining technique, using a sequence of crystal violet, iodine and safranine, used to differentiate bacteria into two large groups of species.

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.

(geology) The process by which rocks are changed into other forms by the application of heat and/or pressure.

(chemistry) any compound in which two or more metal atoms are bonded to one another

(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.

A high-pressure discharge lamp that is enclosed in a quartz envelope containing metal halides (usually iodides), and produces high-efficacy white light.