Hemisphere

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[编辑] GRE 红宝书

  • n. 半球
  • [英] n. 半球 ( half a sphere)

[编辑] Webster Collegiate

noun

  • Etymology: Middle English hemispere, from Latin hemisphaerium, from Greek hēmisphairion, from hēmi- + sphairion, diminutive of sphaira sphere
  • Date: 14th century
  • 1.
    • a. a half of the celestial sphere as divided into two halves by the horizon, the celestial equator, or the ecliptic
    • b. half of a spherical or roughly spherical body (as a planet); specifically the northern or southern half of the earth as divided by the equator or the eastern or western half as divided by a meridian
    • c. the inhabitants of a terrestrial hemisphere
  • 2. realm, province
  • 3. one of two half spheres formed by a plane through the sphere's center
  • 4. a map or projection of a celestial or terrestrial hemisphere
  • 5. cerebral hemisphere
  • ? hemispheric or hemispherical adjective


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