(philately) An act of determining where a postage stamp is positioned on a sheet. / A thin coating of metal laid upon another metal. / A coating or defensive armour of metal plates.

(chemistry) Any of several salts containing the anion Pt(CN)₄²⁻

(uncountable) A method of making photographic prints using platinum salts. / (countable) A print made by this method.

plural of platinotype

Of or resembling platinum

(chemistry) Any of several metals that resemble platinum in their chemistry; especially osmium, iridium and palladium / An alloy of copper, nickel, tungsten, and zinc once used in heating elements

plural of platinoid

present participle of silver plate

plural of platinocyanide

Third-person singular simple present indicative form of platinise