demagnetize

Definitions of demagnetize
1

v make nonmagnetic; take away the magnetic properties (of)

demagnetize the iron shavings”
Synonyms:
degauss, demagnetise
Antonyms:
magnetise, magnetize
make magnetic
Type of:
alter, change, modify
cause to change; make different; cause a transformation

v erase (a magnetic storage device)

Synonyms:
demagnetise
Type of:
delete, erase
wipe out digitally or magnetically recorded information

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.