Definition of ordinal number in English:

ordinal number

Syllabification: or·di·nal num·ber

noun

  • A number defining a thing’s position in a series, such as “first,” “second,” or “third.” Ordinal numbers are used as adjectives, nouns, and pronouns. Compare with cardinal number.
    More example sentences
    • We should say immediately that the ancient Greeks had different systems for cardinal numbers and ordinal numbers so we must look carefully at what we mean by Greek number systems.
    • However, it was not to be, but the second paper describes his theory of well-ordered sets and ordinal numbers.
    • It basically revolves round the set of all ordinal numbers.

More definitions of ordinal number

Definition of ordinal number in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day milord
Pronunciation: məˈlôrd
noun
used to address an English nobleman