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magnetic polarity
(physics) the state of being a north pole or south pole; the magnetic equivalent of electric charge
polar vortex
A large-scale cyclone located in the middle and upper troposphere and stratosphere that surround the polar highs and lie in the wake of the polar front.
polar nights
plural of polar night
polar circles
plural of polar circle
polar equations
plural of polar equation
polarity therapy
A form of energy medicine based on the idea that a person's health is subject to positive and negative electromagnetic charges.
polar cone
(linear algebra) Relative to a set S in Rⁿ, the set of points y such that the inner product of x and y is not positive for any point x in S.
polar night
A period of darkness that occurs in winter in polar regions north from the Arctic Circle and south from the Antarctic Circle, and during which the sun stays below the horizon.
