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Iceland Spar :: Iceland spar () A transparent variety of calcite, the best of which is obtained in Iceland. It is used for the prisms of the polariscope, because of its strong double refraction. Cf. Calcite..

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

Polarizing :: Polarizing (p. pr. & vb. n.) of Polariz.

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..

Polar :: Polar (a.) Pertaining to, reckoned from, or having a common radiating point; as, polar coordinates..

Bibliopolar :: Bibliopolar (a.) Of or pertaining to the sale of books.

Dextro- :: Dextro- () having the property of turning the plane of polarized light to the right; as, dextrotartaric acid..

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

Polarization :: Polarization (n.) An effect produced upon the plates of a voltaic battery, or the electrodes in an electrolytic cell, by the deposition upon them of the gases liberated by the action of the current. It is chiefly due to the hydrogen, and results in an increase of the resistance, and the setting up of an opposing electro-motive force, both of which tend materially to weaken the current of the battery, or that passing through the cell..

Biaxial :: Biaxial (a.) Having two axes; as, biaxial polarization..

Polarizable :: Polarizable (a.) Susceptible of polarization.

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

Astatic :: Astatic (a.) Having little or no tendency to take a fixed or definite position or direction: thus, a suspended magnetic needle, when rendered astatic, loses its polarity, or tendency to point in a given direction..

Unipolar :: Unipolar (a.) Having but one pole or process; -- applied to those ganglionic nerve cells which have but one radiating process; -- opposed to multipolar.

Inactive :: Inactive (a.) Not active; inert; esp., not exhibiting any action or activity on polarized light; optically neutral; -- said of isomeric forms of certain substances, in distinction from other forms which are optically active; as, racemic acid is an inactive tartaric acid..

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

Apsis :: Apsis (n.) In a curve referred to polar coordinates, any point for which the radius vector is a maximum or minimum..

Rotatory :: Rotatory (a.) Producing rotation of the plane of polarization; as, the rotatory power of bodies on light. See the Note under polarization..

Zinco-polar :: Zinco-polar (a.) Electrically polarized like the surface of the zinc presented to the acid in a battery, which has zincous affinity..

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..

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