cardinality

IPA: kˈɑrdʌnˈæɫɪti

(set theory, of a set) The number of elements a given set contains.
(type theory) The number of terms that can inhabit a type; the possible values of a type.
(data modeling, databases) 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.
(religion) The status of being cardinalitial

Examples of "cardinality" in Sentences

One boy, Joshua, used a pointer to illustrate a math concept known as cardinality, by completing place settings on a whiteboard.
At recess, one boy, Joshua, used a pointer to illustrate a math concept known as cardinality, by completing place settings on a whiteboard.
Thus, if you write card (N) = µ 0 (read: aleph sub zero), his theorems justified calling the cardinality of the “second number class” µ 1.
For example, it certainly depends on whether your set of trials is countably infinite or uncountably infinite (in other words the cardinality of your set of trials).
(Newman 1928, 144) To see how this so-called cardinality constraint applies to ramseyfications of theories, note that in Carnap's hands, the non-observational part of reconstructed theories, their theoretical entities, were represented by “purely logico-mathematical entities, e.g. natural numbers, classes of such, classes of classes, etc.”