magnetic compass

magnetic compass (plural magnetic compasses)

  1. (military, nautical) An instrument containing a freely suspended magnetic element which displays the direction of the horizontal component of the Earth’s magnetic field at the point of observation.
    Synonyms: compass
  2. A supposed organ, in some animals, that allows then to align themselves with the Earth's magnetic field.
  • French: boussole magnétique
  • Italian: bussola magnetica

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