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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Mad :: Mad (superl.) Having impaired polarity; -- applied to a compass needle.

Polariscope :: Polariscope (n.) An instrument consisting essentially of a polarizer and an analyzer, used for polarizing light, and analyzing its properties..

Polarily :: Polarily (adv.) In a polary manner; with polarity.

Polarized :: Polarized (imp. & p. p.) of Polariz.

Polarization :: Polarization (n.) A peculiar affection or condition of the rays of light or heat, in consequence of which they exhibit different properties in different directions..

Saccharimetry :: Saccharimetry (n.) The act, process or method of determining the amount and kind of sugar present in sirup, molasses, and the like, especially by the employment of polarizing apparatus..

Maltose :: Maltose (n.) A crystalline sugar formed from starch by the action of distance of malt, and the amylolytic ferment of saliva and pancreatic juice. It resembles dextrose, but rotates the plane of polarized light further to the right and possesses a lower cupric oxide reducing power..

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..

Polarize :: Polarize (v. t.) To communicate polarity to.

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

Dextrose :: Dextrose (n.) A sirupy, or white crystalline, variety of sugar, C6H12O6 (so called from turning the plane of polarization to the right), occurring in many ripe fruits. Dextrose and levulose are obtained by the inversion of cane sugar or sucrose, and hence called invert sugar. Dextrose is chiefly obtained by the action of heat and acids on starch, and hence called also starch sugar. It is also formed from starchy food by the action of the amylolytic ferments of saliva and pancreatic juice..

Levo- :: Levo- () Turning the plane of polarized light to the left; as, levotartaric acid; levoracemic acid; levogyratory crystals, etc..

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

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..

Polariscopy :: Polariscopy (n.) The art or rocess of making observations with the polariscope.

Idiophanous :: Idiophanous (a.) Exhibiting interference figures without the aid of a polariscope, as certain crystals..

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..

Depolarization :: Depolarization (n.) The act of depriving of polarity, or the result of such action; reduction to an unpolarized condition..

Depolarize :: Depolarize (v. t.) To deprive of polarity; to reduce to an unpolarized condition.

Levulose :: Levulose (n.) A sirupy variety of sugar, rarely obtained crystallized, occurring widely in honey, ripe fruits, etc., and hence called also fruit sugar. It is called levulose, because it rotates the plane of polarization to the left..