phosphating

== English == === Etymology === From phosphate +‎ -ing. === Noun === phosphating (usually uncountable, plural phosphatings) The application of a protective coating of phosphate to the surface of metals (usually steels); various types exist; the coating is often black or gray. Hypernyms: conversion coating < coating, finish; substance, material Coordinate terms: black oxide, bluing, browning, passivation, plating, electroplating, galvanizing Near-synonym: blackening ==== Translations ====