CARDINALNUMBER

Cardinal number

In mathematics, cardinal numbers, or cardinals for short, are a generalization of the natural numbers used to measure the cardinality of sets. The cardinality of a finite set is a natural number – the number of elements in the set. The transfinite cardinal numbers describe the sizes of infinite sets.

The above text is a snippet from Wikipedia: Cardinal number
and as such is available under the Creative Commons Attribution/Share-Alike License.

cardinal number

Noun

  1. A number used to denote quantity; a counting number.
    The smallest cardinal numbers are 0, 1, 2, and 3.
    The cardinal number "three" can be represented as "3" or "three".
  2. A generalized kind of number used to denote the size of a set, including infinite sets.
  3. A word that expresses a countable quantity; a cardinal numeral.
    "Three" is a cardinal number, while "third" is an ordinal number.


The above text is a snippet from Wiktionary: cardinal number
and as such is available under the Creative Commons Attribution/Share-Alike License.

Need help with a clue?
Try your search in the crossword dictionary!