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Hasil cari dari kata atau frase: Ursus maritimus (0.01309 detik)
Found 1 items, similar to Ursus maritimus.
English → English (gcide) Definition: Ursus maritimus Polar \Po"lar\, a. [Cf. F. polaire. See Pole of the earth.] 1. 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] 2. Of or pertaining to the magnetic pole, or to the point to which the magnetic needle is directed. [1913 Webster] 3. (Geom.) Pertaining to, reckoned from, or having a common radiating point; as, polar co["o]rdinates. [1913 Webster] Polar axis, that axis of an astronomical instrument, as an equatorial, which is parallel to the earths axis. Polar bear (Zo["o]l.), 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 spermatozo["o]n; 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 23[deg] 28', the northern called the arctic 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[deg] from the sun. Polar co["o]rdinates. See under 3d Co["o]rdinate. 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 co["o]rdinates 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 (Zo["o]l.), 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 (Zo["o]l.), the right whale, or bowhead. See Whale. [1913 Webster] Bear \Bear\ (b[^a]r), n. [OE. bere, AS. bera; akin to D. beer, OHG. bero, pero, G. b["a]r, Icel. & Sw. bj["o]rn, and possibly to L. fera wild beast, Gr. fh`r beast, Skr. bhalla bear.] [1913 Webster] 1. (Zo["o]l.) Any species of the genus Ursus, and of the closely allied genera. Bears are plantigrade Carnivora, but they live largely on fruit and insects. [1913 Webster] Note: The European brown bear (Ursus arctos), the white polar bear (Ursus maritimus), the grizzly bear (Ursus horribilis), the American black bear, and its variety the cinnamon bear (Ursus Americanus), the Syrian bear (Ursus Syriacus), and the sloth bear, are among the notable species. [1913 Webster] 2. (Zo["o]l.) An animal which has some resemblance to a bear in form or habits, but no real affinity; as, the woolly bear; ant bear; water bear; sea bear. [1913 Webster] 3. (Astron.) One of two constellations in the northern hemisphere, called respectively the Great Bear and the Lesser Bear, or Ursa Major and Ursa Minor. [1913 Webster] 4. Metaphorically: A brutal, coarse, or morose person. [1913 Webster] 5. (Stock Exchange) A person who sells stocks or securities for future delivery in expectation of a fall in the market. [1913 Webster] Note: The bears and bulls of the Stock Exchange, whose interest it is, the one to depress, and the other to raise, stocks, are said to be so called in allusion to the bear's habit of pulling down, and the bull's of tossing up. [1913 Webster] 6. (Mach.) A portable punching machine. [1913 Webster] 7. (Naut.) A block covered with coarse matting; -- used to scour the deck. [1913 Webster] Australian bear. (Zo["o]l.) See Koala. Bear baiting, the sport of baiting bears with dogs. Bear caterpillar (Zo["o]l.), the hairy larva of a moth, esp. of the genus Euprepia. Bear garden. (a) A place where bears are kept for diversion or fighting. (b) Any place where riotous conduct is common or permitted. --M. Arnold. Bear leader, one who leads about a performing bear for money; hence, a facetious term for one who takes charge of a young man on his travels. [1913 Webster]

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