Simple Definition of cardinal number
: a number (such as 1, 2, or 3) that is used in simple counting and shows quantity
Full Definition of cardinal number
1 : a number (as 1, 5, 15) that is used in simple counting and that indicates how many elements there are in an assemblage — see number table
2 : the property that a mathematical set has in common with all sets that can be put in one-to-one correspondence with it
First Known Use of cardinal number
CARDINAL NUMBER Defined for Kids
Definition of cardinal number for Students
: a number (as 1, 5, 22) that is used in simple counting and answers the question “how many?”
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Spanish Central: Translation of "cardinal number" Nglish: Translation of "cardinal number" for Spanish speakers Britannica.com: Encyclopedia article about "cardinal number"
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