# cardinal number

### noun

Also called cardinal numeral. any of the numbers that express amount, as one, two, three, etc. (distinguished from ordinal number).

## Words nearby cardinal number

## Origin of cardinal number

First recorded in 1585–95

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

## British Dictionary definitions for cardinal numbers

cardinal number

### cardinal numeral

### noun

a number denoting quantity but not order in a setSometimes shortened to: cardinal

maths logic

- a measure of the size of a set that does not take account of the order of its membersCompare natural number
- a particular number having this function

Compare ordinal number

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

## Scientific definitions for cardinal numbers

cardinal number

[ kär′dn-əl ]

A number, such as 3, 11, or 412, used in counting to indicate quantity but not order. Compare ordinal number.

The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

## Cultural definitions for cardinal numbers

cardinal numbers

Numbers that indicate the quantity of things in a group or set, but not the order or arrangement of those things. One, two, and one thousand are cardinal numbers. (Compare ordinal numbers.)

The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.