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Adjective polar has 6 senses


polara. [Cf. F. polaire. See Pole of the earth.].
  •  Of or pertaining to one of the poles of the earth, or of a sphere; situated near, or proceeding from, one of the poles; as, polar regions; polar seas; polar winds.  [1913 Webster]
  •  Of or pertaining to the magnetic pole, or to the point to which the magnetic needle is directed.  [1913 Webster]
  •  Pertaining to, reckoned from, or having a common radiating point; as, polar coördinates.  [1913 Webster]
Polar axis, that axis of an astronomical instrument, as an equatorial, which is parallel to the earths axis. -- Polar bear (Zoöl.), a large bear (Ursus maritimus syn. Thalarctos maritimus) inhabiting the arctic regions. It sometimes measures nearly nine feet in length and weighs 1,600 pounds. It is partially amphibious, very powerful, and the most carnivorous of all the bears. The fur is white, tinged with yellow. Called also White bear. See Bear. -- Polar body, Polar cell, or Polar globule (Biol.), a minute cell which separates by karyokinesis from the ovum during its maturation. In the maturation of ordinary ova two polar bodies are formed, but in parthogenetic ova only one. The first polar body formed is usually larger than the second one, and often divides into two after its separation from the ovum. Each of the polar bodies removes maternal chromatin from the ovum to make room for the chromatin of the fertilizing spermatozoön; but their functions are not fully understood. -- Polar circles (Astron. & Geog.), two circles, each at a distance from a pole of the earth equal to the obliquity of the ecliptic, or about 23arctic circle, and the southern the antarctic circle. -- Polar clock, a tube, containing a polarizing apparatus, turning on an axis parallel to that of the earth, and indicating the hour of the day on an hour circle, by being turned toward the plane of maximum polarization of the light of the sky, which is always 90 -- Polar coördinates. See under 3d Coördinate. -- Polar dial, a dial whose plane is parallel to a great circle passing through the poles of the earth. Math. Dict. -- Polar distance, the angular distance of any point on a sphere from one of its poles, particularly of a heavenly body from the north pole of the heavens. -- Polar equation of a line or Polar equation of a surface, an equation which expresses the relation between the polar coördinates of every point of the line or surface. -- Polar forces (Physics), forces that are developed and act in pairs, with opposite tendencies or properties in the two elements, as magnetism, electricity, etc. -- Polar hare (Zoöl.), a large hare of Arctic America (Lepus arcticus), which turns pure white in winter. It is probably a variety of the common European hare (Lepus timidus). -- Polar lights, the aurora borealis or australis. -- Polar opposition, or Polaric opposition or Polar contrast or Polaric contrast (Logic), an opposition or contrast made by the existence of two opposite conceptions which are the extremes in a species, as white and black in colors; hence, as great an opposition or contrast as possible. -- Polar projection. See under Projection. -- Polar spherical triangle (Spherics), a spherical triangle whose three angular points are poles of the sides of a given triangle. See 4th Pole, 2. -- Polar whale (Zoöl.), the right whale, or bowhead. See Whale.
     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 than the second, and poles and polar planes to surfaces of the second degree.  [1913 Webster]


polar, 1 adj. a of or near a pole of the earth or a celestial body, or of the celestial sphere. b (of a species or variety) living in the north polar region.
2 having magnetic polarity.
3 a (of a molecule) having a positive charge at one end and a negative charge at the other. b (of a compound) having electric charges.
4 Geom. of or relating to a pole.
5 directly opposite in character or tendency.

polar bear a white bear, Ursus maritimus, of the Arctic regions. polar body a small cell produced from an oocyte during the formation of an ovum, which does not develop further. polar circle each of the circles parallel to the equator at a distance of 23° 27
from either pole. polar coordinates a system by which a point can be located with reference to two angles. polar curve a curve related in a particular way to a given curve and to a fixed point called a pole. polar distance the angular distance of a point on a sphere from the nearest pole. polar star = POLESTAR.
polarly adv.
F polaire or mod.L polaris (as POLE(2))



Antarctic, Arctic, Siberian, antagonistic, antipodal, antipodean, antithetic, antithetical, boundary, brumal, caudal, conclusive, confronting, contradictory, contrapositive, contrary, converse, counter, definitive, determinative, diamagnetic, diametric, electromagnetic, endmost, eventual, extreme, eyeball-to-eyeball, facing, farthest, ferromagnetic, final, freezing, frigid, frozen, glacial, hibernal, hostile, hyperborean, icy, inverse, last, limiting, magnetic, numbing, obverse, opposed, opposing, opposite, polaric, polarized, reverse, tail, terminal, terminating, terminative, ultimate, wintry




N summit, summity, top, peak, vertex, apex, zenith, pinnacle, acme, culmination, meridian, utmost height, ne plus utra, height, pitch, maximum, climax, culminating point, crowning point, turning point, turn of the tide, fountain head, water shed, water parting, sky, pole, tip, tip top, crest, crow's nest, cap, truck, nib, end, crown, brow, head, nob, noddle, pate, capsheaf, high places, heights, topgallant mast, sky scraper, quarter deck, hurricane deck, architrave, frieze, cornice, coping stone, zoophorus, capital, epistyle, sconce, pediment, entablature, tympanum, ceiling, attic, loft, garret, house top, upper story, summit conference, summit, peak of achievement, peak of performance, peaks and troughs, peaks and valleys (in graphs), highest &c (high), top, top most, upper most, tiptop, culminating, meridian, meridional, capital, head, polar, supreme, supernal, topgallant, atop, at the top of the tree, en flute, fleur deau.

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