DICT.TW Dictionary Taiwan

 Spher·ic·al Spher·ic a.
 1. Having the form of a sphere; like a sphere; globular; orbicular; as, a spherical body.
 2. Of or pertaining to a sphere.
 3. Of or pertaining to the heavenly orbs, or to the sphere or spheres in which, according to ancient astronomy and astrology, they were set.
    Knaves, thieves, and treachers by spherical predominance.   --Shak.
 Though the stars were suns, and overburned
 Their spheric limitations.   --Mrs. Browning.
 Spherical angle, Spherical coordinate, Spherical excess, etc. See under Angle, Coordinate, etc.
 Spherical geometry, that branch of geometry which treats of spherical magnitudes; the doctrine of the sphere, especially of the circles described on its surface.
 Spherical harmonic analysis. See under Harmonic, a.
 Spherical lune,portion of the surface of a sphere included between two great semicircles having a common diameter.
 Spherical opening, the magnitude of a solid angle. It is measured by the portion within the solid angle of the surface of any sphere whose center is the angular point.
 Spherical polygon,portion of the surface of a sphere bounded by the arcs of three or more great circles.
 Spherical projection, the projection of the circles of the sphere upon a plane. See Projection.
 Spherical sector. See under Sector.
 Spherical segment, the segment of a sphere. See under Segment.
 Spherical triangle,re on the surface of a sphere, bounded by the arcs of three great circles which intersect each other.
 Spherical trigonometry. See Trigonometry.
 -- Spher*ic*al*ly, adv. -- Spher*ic*al*ness, n.
 ◄ ►

 spherical triangle
      n : a spherical polygon formed by the arcs of 3 great circles