Ordinal /(?)/

Or·di·nal

Ordinal

a.
  1. Indicating order or succession; as, the ordinal numbers, first, second, third, etc. Contrasted to cardinal.
  2. Of or pertaining to an order.

Ordinal

n.
  1. A word or number denoting order or succession.
  2. The book of forms for making, ordaining, and consecrating bishops, priests, and deacons. (Ch. of Eng.)
  3. A book containing the rubrics of the Mass. (R. C. Ch.)