Ordinal

Part of speech: noun (n.)

1. A word or number denoting order or succession.

2. The book of forms for making, ordaining, and consecrating bishops, priests, and deacons.

3. A book containing the rubrics of the Mass. [Written also ordinale.]

Part of speech: adjective (a.)

1. Indicating order or succession; as, the ordinal numbers, first, second, third, etc.

2. Of or pertaining to an order.