cardinal number

noun

Definition of cardinal number

1 : a number (such as 1, 5, 15) that is used in simple counting and that indicates how many elements there are in an assemblage — see Table of Numbers
2 : the property that a mathematical set has in common with all sets that can be put in one-to-one correspondence with it

Examples of cardinal number in a Sentence

Recent Examples on the Web

With the hypothesis unresolved, many other properties of cardinal numbers and infinity remain uncertain too. Quanta Magazine, "To Settle Infinity Dispute, a New Law of Logic," 26 Nov. 2013

First Known Use of cardinal number

1591, in the meaning defined at sense 1

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More Definitions for cardinal number

cardinal number

noun

English Language Learners Definition of cardinal number

: a number (such as 1, 2, or 3) that is used in simple counting and shows quantity

cardinal number

noun

Kids Definition of cardinal number

: a number (as 1, 5, 22) that is used in simple counting and answers the question “how many?”

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