- expressing order or succession, specif. of a number in a series
- of an order of animals or plants
Origin of ordinalMiddle English ordynal, conforming to order from Late Latin ordinalis from Classical Latin ordo, order
- ordinal number
- [oftenO-]Eccles. a book of prescribed forms or ceremonies
- Being of a specified position in a numbered series: an ordinal rank of seventh.
- Of or relating to a taxonomic order.
- An ordinal number.
- Ecclesiastical a. A book of instructions for daily services.b. A book of forms for ordination.
Origin of ordinalMiddle English ordinel orderly, regular from Late Latin ōrdinālis ordinal from Latin ōrdō ōrdin- order ; see ar- in Indo-European roots. N., sense 2, from Middle English from Medieval Latin ōrdināle from Late Latin neuter sing. of ōrdinālis ordinal