permanent magnet
noun
a magnet that retains its magnetism after being removed from an external magnetic field.
permanent magnetism
-
a word derived from
permanent magnet.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Figure 22.13 An electromagnet induces regions of permanent magnetism on a floppy disk coated with a ferromagnetic material.
From Textbooks ● Aug. 12, 2015
The semicircular error is due to a great extent to permanent magnetism, but also in part to induced magnetism.
From Lord Kelvin An account of his scientific life and work by Andrew Gray
It does not do to slam on the armature; every time you do so, you knock some of the so-called permanent magnetism out of it.
From Scientific American Supplement, No. 787, January 31, 1891 by Various
In all the preceding experiments the bodies brought in presence were both in motion and the phenomena were analogous to those of permanent magnetism.
From Scientific American Supplement, No. 315, January 14, 1882 by Various
Substitute for your magnetic needle a bit of iron wire, devoid of permanent magnetism, and it will set itself exactly as the needle does.
From Fragments of science, V. 1-2 by John Tyndall
