Simple Definition of ordinal number
: a number (such as first, fifth, or 22nd) that is used to show the position of someone or something in a series
Full Definition of ordinal number
1 : a number designating the place (as first, second, or third) occupied by an item in an ordered sequence — see number table
2 : a number assigned to an ordered set that designates both the order of its elements and its cardinal number
First Known Use of ordinal number
ORDINAL NUMBER Defined for Kids
Definition of ordinal number for Students
: a number that is used to show the place (as first, fifth, 22nd) taken by an element in a series
Learn More about ordinal number
Nglish: Translation of "ordinal number" for Spanish speakers Britannica.com: Encyclopedia article about "ordinal number"
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