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Of or pertaining to a planisphere.

f reckoning, in the heavens, usually the intersection of two or more great circles of the sphere, and named specifically in each case according to the position intended; as, the equinoctial points; the solstitial points; the nodal points; vertical points, etc. See Equinoctial Nodal.

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.

Either extremity of an axis of a sphere; especially, one of the extremities of the earth's axis; as, the north pole.

n thereof, by which each narrow zone is projected upon a conical surface that touches the sphere along this zone, the conical surface being then unrolled. This projection differs from conic projection in that latter assumes but one cone for the whole map. Polyconic projection is that in use in the United States coast a…

ated on the ventral side of the medulla oblongata and connected at each side with the hemispheres of the cerebellum; the mesocephalon. See Brain. Pons asinorum. Etym: [L., literally, bridge of asses.] See Asses' bridge, under Ass.

e (Encyc. of Music). -- Primitive circle (Spherical Projection), the circle cut from the sphere to be projected, by the primitive plane. -- Primitive colors (Paint.), primary colors. See under Color. -- Primitive Fathers (Eccl.), the acknowledged Christian writers who flourished before the Council of Nice, A. D. 325…

In the Ptolemaic system, the outermost of the revolving concentric spheres constituting the universe, the motion of which was supposed to carry with it all the inclosed spheres with their planets in a daily revolution from east to west. See Crystalline heavens, under Crystalline. The motions of the greatest persons in…

To draw or exhibit, as the form of anything; to delineate; as, to project a sphere, a map, an ellipse, and the like; -- sometimes with on, upon, into, etc.; as, to project a line or point upon a plane. See Projection, 4.

e drawn through it from a given point of sight, or central point; as, the projection of a sphere. The several kinds of projection differ according to the assumed point of sight and plane of projection in each.

proper or appropriate business or duty of a person or body; office; charge; jurisdiction; sphere. The woman'sprovince is to be careful in her economy, and chaste in her affection. Tattler.

An instrument for measuring the tension of the aqueous vapor in the atmosphere, being essentially a wet and dry bulb hygrometer.

Limit or sphere of authority; scope; extent. In determining the extent of information required in the exercise of a particular authority, recourse must be had to the objects within the purview of that authority. Madison.

r extending from the center of a circle to the periphery; the semidiameter of a circle or sphere.

n concentric bands, the several colors of the spectrum, and formed in the part of the hemisphere opposite to the sun by the refraction and reflection of the sun's rays in drops of falling rain.

d by wide separation of parts; of loose texture; not thick or dense; thin; as, a rare atmosphere at high elevations. Water is nineteen times lighter, and by consequence nineteen times rarer, than gold. Sir I. Newton.

a heavenly body from which it emanates, arising from its passage through the earth's atmosphere; -- hence distinguished as atmospheric refraction, or astronomical refraction.

Tract, part, or space, lying about and including anything; neighborhood; vicinity; sphere. "Though the fork invade the region of my heart." Shak. Philip, tetrarch of .. the region of Trachonitis. Luke iii. 1.

The territory or sphere which is reigned over; kingdom; empire; realm; dominion. [Obs.] Spenser. [God] him bereft the regne that he had. Chaucer.

ngifer, of the Deer family, found in the colder parts of both the Eastern and Western hemispheres, and having long irregularly branched antlers, with the brow tines palmate.