(n)an electromagnet (as on a tape recorder) that converts electrical variations into magnetic variations that can be stored on a surface and later retrieved
The Collaborative International Dictionary of English (GCIDE) v.0.53Collaborative International Dictionary (GCIDE)
n. (Electronics) An electromagnet (as on a tape recorder) that converts electrical variations into magnetic variations that can be stored on a magnetizable surface and later retrieved. [ WordNet 1.5 ]