Definition of "spherical"

spherical

/sfɛɹɪkəl/

adjective
comparative more spherical, superlative most spherical
1. (geometry) Shaped like a sphere.
  Quotations
  The ability of a segment of a glass sphere to magnify whatever is placed before it was known around the year 1000, when the spherical segment was called a reading stone, essentially what today we might term a frameless magnifying glass or plain glass paperweight.
  2013 September-October, Henry Petroski, “The Evolution of Eyeglasses”, in American Scientist
2. (geometry, not comparable) Of, or pertaining to, spheres.
3. (mathematics) Of a coordinate system, specifying the location of a point in a plane by using a radius and two angles.
4. (astrology) Of or relating to the heavenly orbs, or to the sphere or spheres in which, according to ancient astronomy and astrology, they were set.
  Quotations
  Knaves, thieves, and treachers by spherical predominance.
  c. 1603–1606, William Shakespeare, “The Tragedie of King Lear”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act I, scene ii]