[ordinal number] n (1607) 1: a number designating the place (as first, second, or third) occupied by an item in an ordered sequence
2: a number assigned to an ordered set that designates both the order of its elements and its cardinal number
[ordinal number] n (1607) 1: a number designating the place (as first, second, or third) occupied by an item in an ordered sequence
2: a number assigned to an ordered set that designates both the order of its elements and its cardinal number
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012