Of or pertaining to a pole or the poles of a sphere. Proceeding, issuing from, or found in the regions near the poles of the earth or of the heavens: as, the polar ocean; a polar bear.Pertaining to a magnetic pole or poles; pertaining to the points of a body at which its attractive or repulsive energy is concentrated.In anatomy, having poles in any way distinguished, as a cell: said especially of ovum-cells and nerve-cells.In higher geom., reciprocal to a pole; of the nature of a polar. See II.n. A plane curve whose point-equation is derived from that of another plane curve (with respect to which it is said to be a polar) by operating one or more times (according as it is first, second, etc., polar) with the symbol x′ . d/ d x + y'. d/ d y + z'. d/ d z, where x', y', z' are the trilinear coördinates of a fixed point (of which the curve is said to be a polar).Having opposite properties at its two ends.n. A great circle two of whose points are each a quadrant from a given point: it is the polar of the given point.n. Given a trihedral; to each face from the vertex erect a perpendicular ray on the same side as the third edge; the trihedral they form is the polar of the given one.