Translate polar | into French | into German | into Italian | into Spanish Definition of polar
adjective
1of or relating to the North or South Pole:the polar regions (of an animal or plant) living in the north or south polar region. Astronomy of or relating to the poles of a celestial body. Astronomy of or relating to a celestial pole. Geometry of or relating to the poles of a sphere. See pole2. Biology of or relating to the poles of a cell, organ, or part.
2 Physics &
Chemistry having electrical or magnetic polarity. (of a liquid, especially a solvent) consisting of molecules with a dipole moment.
3directly opposite in character or tendency:depression and its polar opposite, mania
noun
1 Geometry the straight line joining the two points at which tangents from a fixed point touch a conic section.
2 Astronomy a variable binary star that emits strongly polarized light, one component being a strongly magnetic white dwarf.
