English Explanatory Dictionary

ordinal number

English dictionary entry

Meanings

noun
  1. A word that expresses the relative position of an item in a sequence.
  2. A natural number used to denote position in a sequence.
  3. Such a number generalised to correspond to any cardinal number (the size of some set); formally, the order type of some well-ordered set of some cardinality a, which represents an equivalence class of well-ordered sets (exactly those of cardinality a) under the equivalence relation "existence of an order-preserving bijection".

Pronunciation

LL-Q1860 (eng)-Vealhurl-ordinal number.wav

Word forms

ordinal number ordinal numbers

Synonyms

ordinal ordinal numeral

Antonyms

antonym(s) of

Related words

numeral order type zeroth

Translations

Bulgarian: ординал Czech: ordinální číslo Dutch: ranggetal Finnish: ordinaali Hungarian: rendszám Japanese: 順序数 Polish: liczba porządkowa Welsh: trefnolyn Welsh: rhif trefnol
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