方ほう位い磁じ石しゃく

noun

magnetic compass

A device that uses a magnetized needle to indicate direction; the standard term for a compass in navigation and science contexts.

• 方ほう位い磁じ石しゃくを使つかって北きたの方ほう角がくを確かく認にんした。

  I checked the direction of north using a magnetic compass.