English definition of Polar

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Definition of polar

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Polar (n.) The right line drawn through the two points of contact of the two tangents drawn from a given point to a given conic section. The given point is called the pole of the line. If the given point lies within the curve so that the two tangents become imaginary, there is still a real polar line which does not meet the curve, but which possesses other properties of the polar. Thus the focus and directrix are pole and polar. There are also poles and polar curves to curves of higher degree th

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Bipolar :: Bipolar (a.) Doubly polar; having two poles; as, a bipolar cell or corpuscle..

Depolarize :: Depolarize (v. t.) To free from polarization, as the negative plate of the voltaic battery..

Induction :: Induction (n.) The property by which one body, having electrical or magnetic polarity, causes or induces it in another body without direct contact; an impress of electrical or magnetic force or condition from one body on another without actual contact..

Impolarily :: Impolarily (adv.) Alt. of Impolarl.

Gyroidal :: Gyroidal (a.) Turning the plane of polarization circularly or spirally to the right or left.

Dipolar :: Dipolar (a.) Having two poles, as a magnetic bar..

Ray :: Ray (n.) A line of light or heat proceeding from a radiant or reflecting point; a single element of light or heat propagated continuously; as, a solar ray; a polarized ray..

Isotropy :: Isotropy (n.) Uniformity of physical properties in all directions in a body; absence of all kinds of polarity; specifically, equal elasticity in all directions..

Inherent :: Inherent (a.) Permanently existing in something; inseparably attached or connected; naturally pertaining to; innate; inalienable; as, polarity is an inherent quality of the magnet; the inherent right of men to life, liberty, and protection..

Circumpolar :: Circumpolar (a.) About the pole; -- applied to stars that revolve around the pole without setting; as, circumpolar stars..

Impolarly :: Impolarly (adv.) Not according to or in, the direction of the poles..

Solenoid :: Solenoid (n.) An electrodynamic spiral having the conjuctive wire turned back along its axis, so as to neutralize that component of the effect of the current which is due to the length of the spiral, and reduce the whole effect to that of a series of equal and parallel circular currents. When traversed by a current the solenoid exhibits polarity and attraction or repulsion, like a magnet..

Polarizer :: Polarizer (n.) That which polarizes; especially, the part of a polariscope which receives and polarizes the light. It is usually a reflecting plate, or a plate of some crystal, as tourmaline, or a doubly refracting crystal..

Polariscopic :: Polariscopic (a.) Of or pertaining to the polariscope; obtained by the use of a polariscope; as, polariscopic observations..

Polarity :: Polarity (n.) That quality or condition of a body in virtue of which it exhibits opposite, or contrasted, properties or powers, in opposite, or contrasted, parts or directions; or a condition giving rise to a contrast of properties corresponding to a contrast of positions, as, for example, attraction and repulsion in the opposite parts of a magnet, the dissimilar phenomena corresponding to the different sides of a polarized ray of light, etc..

Cynosure :: Cynosure (n.) The constellation of the Lesser Bear, to which, as containing the polar star, the eyes of mariners and travelers were often directed..

Pyroelectric :: Pyroelectric (n.) A substance which becomes electrically polar when heated, exhibiting opposite charges of statical electricity at two separate parts, especially the two extremities..

Levorotatory :: Levorotatory (a.) Turning or rotating the plane of polarization towards the left; levogyrate, as levulose, left-handed quartz crystals, etc..

Lituus :: Lituus (n.) A spiral whose polar equation is r2/ = a; that is, a curve the square of whose radius vector varies inversely as the angle which the radius vector makes with a given line..

Polarimetry :: Polarimetry (n.) The art or process of measuring the polarization of light.