cardinal number

名词 n.
中文释义

英文释义

名词 n.
  1. A number used to denote quantity; a counting number; a cardinal.
    — The smallest cardinal numbers are 0, 1, 2, and 3.
  2. A generalized kind of number used to denote the size of a set, including infinite sets.
    — This cardinal number is the smallest of the infinite cardinal numbers; it is the one to which Cantor has appropriated the Hebrew Aleph with the suffix 0, to distinguish it from larger infinite cardinals. Thus the name of the smallest of infinite cardinals is ℵ₀.
  3. A word that expresses a countable quantity; a cardinal numeral.
    — “Three” is a cardinal number, while “third” is an ordinal number.

词形变化

cardinal numbers plural
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