# phosphating

> English word · Noun

## Definitions
1. 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.

## Etymology
From phosphate + -ing.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/phosphating