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a large hare of Arctic America (Lepus arcticus), which turns pure white in winter. It is probably a variety of the common European hare (L. timidus). -- Polar lights, the aurora borealis or australis. -- Polar, or Polaric, opposition or contrast (Logic), an opposition or contrast made by the existence of two opposit…

Its farinaceous tubers have a sweetish taste, and are used, when cooked, for food. It is probably a native of Brazil, but is cultivated extensively in the warmer parts of every continent, and even as far north as New Jersey. The name potato was applied to this plant before it was to the Solanum tuberosum, and this is…

r designating, a tetrabasic acid of benzene obtained as a white crystalline substance; -- probably so called from the resemblance of the wartlike crystals to the mammillæ on the surface of prehnite.

ho holds, in opposition to the probabilists, that a man is bound to do that which is most probably right.

up in which are placed a number of low microscopic organisms of doubtful nature. Some are probably plants, others animals.

A quadruped, probably the addax, an antelope having a white rump. Deut. xiv. 5.

A word occurring in a corrupt passage of Bacon's Essays, and probably meaning, to stir, to move.

that lead is the stable end product. At the same time the light gas helium is formed; it probably consists of the expelled alpha particles. The heat effect mentioned above is ascribed to the impacts of these particles. Radium, in turn, is believed to be formed indirectly by an immeasurably slow disintegration of urani…

). -- Rattlesnake weed (Bot.), a plant of the composite genus Hieracium (H. venosum); -- probably so named from its spotted leaves. See also Snakeroot.

The Hebrew name of a horned wild animal, probably the Urus.

horsemanship. -- Riding rhyme (Pros.), the meter of five accents, with couplet rhyme; -- probably so called from the mounted pilgrims described in the Canterbury Tales. Dr. Guest. -- Riding school, a school or place where the art of riding is taught.

A substance found in madder root, and probably identical with ruberythrinic acid.

One of the red dye products extracted from madder root, and probably identical with ruberythrinic acid.

A piece of gold money; -- probably because the gold of coins was often reddened by copper alloy. Called also red ruddock, and golden ruddock. [Obs.] Great pieces of gold . . . red ruddocks. Florio.

Barbary tree (Callitris quadrivalvis or Thuya articulata), and pulverized for pounce; -- probably so called from a resemblance to the mineral.

A precious stone, probably a carnelian, one of which was set in Aaron's breastplate. Ex. xxviii. 17.

artifical or affected action, or course of action, done for effect; a theatrical display. Probably no lover of scenes would have had very long to wait De Quincey. Behind the scenes, behind the scenery of a theater; out of the view of the audience, but in sight of the actors, machinery, etc.; hence, conversant with the…

A bitter principle extracted from the bulbs of the squill (Scilla), and probably consisting of a complex mixture of several substances.

A substance extracted from the rootstock of the Polygala Senega (Seneca root), and probably identical with polygalic acid.

A peculiar fatty substance found in the blood, probably a mixture of fats, cholesterin, etc.