n. 序数

a. 顺序的, 依次的

Ordinal \Or"di*nal\, a. [L. ordinalis, fr. ordo, ordinis, order.
See {Order}.]
1. Indicating order or succession; as, the ordinal numbers,
first, second, third, etc. Contrasted to {cardinal}.
[1913 Webster +PJC]

2. Of or pertaining to an order.


Ordinal \Or"di*nal\, n.
1. A word or number denoting order or succession.

2. (Ch. of Eng.) The book of forms for making, ordaining, and
consecrating bishops, priests, and deacons.

3. (R. C. Ch.) A book containing the rubrics of the Mass.
[Written also {ordinale}.]