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cardinal number, numeral
1. a number denoting quantity but not order in a set
2. Maths Logic
a. a measure of the size of a set that does not take account of the order of its members
b. a particular number having this function
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
cardinal number[′kärd·nəl ′nəm·bər]
The number of members of a set; usually taken as a particular well-ordered set representative of the class of all sets which are in one-to-one correspondence with one another.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The cardinality of some set.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
cardinal numberThe number that states how much or how many. In "record 43 has 7 fields," the 7 is cardinal. See cardinality. Contrast with ordinal number.
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