Any of several reversals in the polarity of the Earth's magnetic field (such that a compass points South) that have happened over geologic time.

(physics) a measure of the magnetization of a material per unit of applied magnetic field

Anseranas semipalmata, the only non-extinct bird of the family Anseranatidae, resident breeder in northern Australia and southern New Guinea, having black and white plumage and yellowish legs.

A great hall or large classroom used for special occasions at a university.

plural of magnum opus

a magnesium lamp / the intense light from such a lamp

A thin ribbon of magnesium metal used in laboratory demonstrations and in the magnesium lamp.

A lamp, containing a coil of magnesium ribbon fed into a burner by clockwork, that produced an intense light.

Alternative spelling of magnesium sulfate

A thin magnesium ribbon. / Wire made from an alloy of magnesium and other metals.