electromagnet

名词 n.

英文释义

名词 n.
  1. A magnet which attracts metals only when electrically activated.
    — Hold the electromagnet near something made of iron and push the switch (S2). […] Large electromagnets are used to move things around at factories and junkyards.

词形变化

electromagnets plural electro-magnet alternative

词源

Etymology tree
French électro-bor.
Ancient Greek ἤλεκτρον (ḗlektron)bor.
Latin ēlectrum
Latin electro-bor.
English electro-
Old French magnetebor.
Pre-Greekbor.?
Ancient Greek Μάγνης (Mágnēs)
Ancient Greek μᾰ́γνης (mắgnēs)bor.
Latin magnēsbor.
Middle English magnete
English magnet
English electromagnet
From electro- + magnet.
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