# ferromagnetism

> English word · Noun · IPA /ˌfɛɹoʊˈmæɡnɪtɪzm/

## Definitions
1. The phenomenon whereby certain substances can become permanent magnets when subjected to a magnetic field.

## Etymology
From ferro- + magnetism.

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