🇬🇧 en zh 🇨🇳

sphere noun

  /sfɪə(ɹ)/ , /sfɪɚ/
  • An object which appears to be bounded by a sphere; a round object, a ball. [from 14th c.]
  • (figuratively) The region in which something or someone is active; one's province, domain. [from 17th c.]
  • (logic, dated) The domain of reference of a proposition, subject, or predicate, or the totality of the particular subjects to which it applies.
 球面
celestial sphere
天球
armillary sphere
浑象
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