Definition of cardinal number in English:

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cardinal number

noun

A number denoting quantity (one, two, three, etc.), as opposed to an ordinal number (first, second, third, etc.).
Example sentences
  • The ancient Greeks had different systems for cardinal numbers and ordinal numbers so we must look carefully at what we mean by Greek number systems.
  • There is a story that it was used as prefix to a number when it was supposed to be read as a cardinal number instead of an ordinal number (#21 = read this as twenty first instead of twenty one).
  • For finite sets, the cardinal numbers are the whole numbers.

For editors and proofreaders

Line breaks: car|dinal num¦ber

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