ordinal

Meanings

1. 1
   adj

   being or denoting a numerical order in a series

   Ordinal numbers.

2. 2
   adj

   of or relating to a taxonomic order

   Family and ordinal names of animals and plants.

3. 3
   adj

   Indicating position in a sequence.

   "Three" is a cardinal number, while "third" is the corresponding ordinal number.

4. 4
   noun

   An ordinal number such as first, second and third.

   The most common numerals in Latin, as in English, are the "cardinals"[…]and the "ordinals"[…].

Borrowed from Latin ōrdinālis, adjective formed from noun ōrdō (“order”), + adjective suffix -ālis.

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