orderedrelation
nounUK /ˈɔːdəd rɪˈleɪʃən/
US /ˈɔːrdərd rɪˈleɪʃən/
A way of pairing things up where the order matters, like first and second.
In an ordered relation, (a, b) is different from (b, a).
OTHER MEANINGS
2. A mathematical relation in which the order of the elements in each pair is significant.
Less-than is an ordered relation because 2 < 5 does not mean 5 < 2.
3. A database relationship where records are arranged in a defined sequence.
The ordered relation between rows lets the query return results in a fixed order.
4. A logical connection between two items that depends on which comes first.
Parent-of is an ordered relation: the parent comes before the child.