# ordinal number

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Related to ordinal number: cardinal number

## ordinal number

*n.*

A number indicating position in a series or order. The ordinal numbers are first (1st), second (2nd), third (3rd), and so on.

## ordinal number

*n*

**1.**(Mathematics) a number denoting relative position in a sequence, such as

*first, second, third*. Sometimes shortened to:

**ordinal**

**2.**(Logic)

*logic*

*maths*a measure of not only the size of a set but also the order of its elements

## or′dinal num′ber

*n.*

any of the numbers that express degree, quality, or position in a series, as

*first, second,*and*third.*[1600–10]

## or·di·nal number

(ôr′dn-əl) A number, such as 3rd, 11th, or 412th, used in counting to indicate position in a series but not quantity. Compare cardinal number.

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Noun | 1. | ordinal number - the number designating place in an ordered sequencenumber - a concept of quantity involving zero and units; "every number has a unique position in the sequence" |

Translations

**ordinální číslo**

**järjestysluku**

**ordinaali**

**ordinaaliluku**

**rendszám**

**sorszámnév**

**numeral ordinal**

## ordinal number

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