Relating to or denoting a magnetic field associated with a toroidal electric field, in which each line of force is confined to a radial or meridian plane.
- ‘The second component of the magnetic field points ‘the short way’ round the torus and is called the poloidal field.’
- ‘But where plasma current alone creates the confining poloidal field in a tokamak, in NCSX, the current will contribute about a quarter of that field, with the rest coming from external magnets.’
1940s: from polar, on the pattern of toroidal.
We take a look at several popular, though confusing, punctuation marks.