from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Of a set, the number of elements it contains.
- n. The property of a relationship between a database table and another one, specifying whether it is one-to-one, one-to-many, many-to-one, or many-to-many.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (mathematics) the number of elements in a set or group (considered as a property of that grouping)
cardinal + -ity (Wiktionary)