noun the number designating place in an ordered sequence.
— synonyms: ordinal_number, no.
adjective of or relating to a taxonomic order.
adjective being or denoting a numerical order in a series.
Examples
“The most common numerals in Latin, as in English, are the "cardinals"...and the "ordinals"... — F. M. Wheelock, Wheelock’s Latin, 6th ed. revised (2005), p97”