magnetic pole
Technical term in physics and earth science; refers to the north or south pole of a magnet or the Earth's magnetic field.
The Earth's magnetic poles are slightly offset from the geographic poles.
棒磁石の両端にはN極とS極の磁極がある。
A bar magnet has magnetic poles, the N pole and the S pole, at both ends.
north magnetic pole
south magnetic pole
field pole
gap width
Compound of 磁 (magnet) and 極 (pole). The exact historical derivation is uncertain, but the kanji combination directly conveys the meaning.