| Title | electromagnet |
|---|---|
| Text |
Merriam-Webster's Collegiate Dictionary elec·tro·mag·net DATE 1831 : a core of magnetic material (as iron) surrounded by a coil of wire through which an electric current is passed to magnetize the core English Etymology electromagnet 1831, from electro- (see electric) + magnet. Oxford Advanced Learner's Dictionary-牛津双解-OALD7 electromagnet elec·tro·mag·net / i5lektrEumA^nEt; NAmE -trou- / noun (physics 物) a piece of metal which becomes magnetic when electricity is passed through it 电磁体 Webster's Third New International Dictionary, Unabridged electromagnet \ ̷ ̷| ̷ ̷ ̷ ̷ at electro- +\ nounEtymology: electr- + magnet : a core of magnetic material (as soft iron) that is surrounded wholly or in part by a coil of wire, that is magnetized when an electric current is passed through the wire, and that retains its power of attraction only while the current is flowing |
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