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cardinality noun

  • (set theory, of a set) The number of elements a given set contains.
 濃度

cardinal noun

  /ˈkɑɹdnəl/ , /ˈkɑɹdɪnəl/ , /ˈkɑː.dɪ.nəl/ , /ˈkɑːd.nəl/
  • (Roman Catholic) One of the officials appointed by the pope in the Roman Catholic Church, ranking only below the pope and the patriarchs, constituting the special college which elects the pope.
  • Any of various related passerine birds of the family Cardinalidae (See Wikipedia article on cardinals) and other similar birds that were once considered to be related.
 枢機卿
  • (math) Short for cardinal number, a number indicating quantity, or the size of a set (e.g., 0, 1, 2, 3). (See Cardinal_number.)
 基数
  • A deep red color, somewhat less vivid than scarlet, the traditional colour of a Catholic cardinal's cassock. (same as cardinal red)
 緋色

cardinal adjective

  /ˈkɑɹdnəl/ , /ˈkɑɹdɪnəl/ , /ˈkɑː.dɪ.nəl/ , /ˈkɑːd.nəl/
  • Describing a “natural” number used to indicate quantity (e.g., zero, one, two, three), as opposed to an ordinal number indicating relative position.
 基数, 枢機卿
  • Of fundamental importance; crucial, pivotal.
 基本, 枢機卿
  • (nautical) Of or relating to the cardinal directions (north, south, east and west).
 枢機卿
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