demagnetize
[di:'mægnitaiz]
vt. 消, 使退

[医] 去, 退



demagnetize
[ verb ]

1. erase (a magnetic storage device)

<verb.communication> demagnetise

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

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

Demagnetize \De*mag"net*ize\, v. t.
1. To deprive of magnetic properties; to render nonmagnetic.
See {Magnetize}.

If the bar be rapidly magnetized and demagnetized.
--Am. Cyc.

2. To free from mesmeric influence; to demesmerize. [archaic]
[1913 Webster +PJC] -- {De*mag`net*i*za"tion}, n. --
{De*mag"net*i`zer}, n.