General Science

  • adjective describes a substance that is weakly magnetised so that it will lie parallel to a magnetic field. The phenomenon results from the presence of unpaired electrons in the atoms of the substance, which cause the atoms to act as tiny magnets when a magnetic field is applied.


  • Pertaining to materials whose relative magnetic permeability is slightly greater than unity, with the relative magnetic permeability of a vacuum having an assigned value of 1. Such materials are moderately attracted by a magnet, and aluminum and liquid oxygen are examples.