Standard Lemma guide

demagnetise

verb · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

verb

Meaning 1

To make something non-magnetic by removing its magnetic properties.

Definition source: English Wiktionary via Wiktextract

Usage: UK

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: degauss

Antonyms: none provided

2

verb

Meaning 2

To erase the contents of a magnetic storage device.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

verb

Meaning 3

make nonmagnetic; take away the magnetic properties (of)

Definition source: Princeton WordNet 3.0

Examples

  • demagnetize the iron shavings
  • they degaussed the ship

Meaning relationships

Synonyms: demagnetize, degauss

Antonyms: magnetise

Broader terms: change, alter, modify

4

verb

Meaning 4

erase (a magnetic storage device)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: demagnetize

Antonyms: none provided

Broader terms: erase, delete

History

Etymology

Etymology tree Proto-Indo-European *de Proto-Indo-European *-h1 Proto-Indo-European *déh1 Proto-Italic *dē Latin dē Latin dē-der. English de- English magnetise English demagnetise From de- + magnetise.