demagnetise
[,di:'mægnitaiz]
vt. 去掉..., 使退



demagnetise
[ verb ]

1. erase (a magnetic storage device)

<verb.communication> demagnetize

2. make nonmagnetic; take away the magnetic properties (of)

<verb.change> degauss demagnetize
demagnetize the iron shavings
they degaussed the ship