cardinality

名词 n.
中文释义
英 /kɑːdɪˈnælɪti/    美 /kɑɹdɪˈnælɪti/

英文释义

名词 n.
  1. The number of elements a given set contains. countable,uncountable
    — The empty set has a cardinality of zero.
  2. The number of terms that can inhabit a type; the possible values of a type. countable,uncountable
    — For many types, such as String, the set of possible values is unlimited. Such types have an infinite cardinality.
  3. 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. countable,uncountable
  4. The status of being cardinalitial countable,uncountable

词形变化

cardinalities plural

词汇关系

相关词
cardinal aleph cardinal number multiplicity

词源

Etymology tree
Latin cardō
Proto-Indo-European *h₂el-der.?
Proto-Italic *-ālis
Latin -ālis
Latin cardinālisder.
Middle French cardinalbor.
English cardinal
Proto-Indo-European *-teh₂
Proto-Indo-European *-ts
Proto-Indo-European *-teh₂ts
Latin -itāsder.
Old French -itebor.
Middle English -ite
English -ity
English cardinality
From cardinal + -ity.
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