magnetic compass(redirected from magnetic compasses)
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An instrument that uses a magnetized steel bar to indicate direction relative to the earth's magnetic poles.
(General Physics) a compass containing a magnetic needle pivoted in a horizontal plane, that indicates the direction of magnetic north at points on the earth's surface
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.
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|Noun||1.||magnetic compass - compass based on an indicator (as a magnetic needle) that points to the magnetic north|
compass - navigational instrument for finding directions
compass card, mariner's compass - compass in the form of a card that rotates so that 0 degrees or North points to magnetic north
magnetic needle - a slender magnet suspended in a magnetic compass on a mounting with little friction; used to indicate the direction of the earth's magnetic pole