regular

adjective

1. Bound by religious rule; belonging to a monastic or religious order (often as opposed to secular).
2. Having a constant pattern; showing evenness of form or appearance.
3. Both equilateral and equiangular; having all sides of the same length, and all (corresponding) angles of the same size
4. Whose faces are all congruent regular polygons, equally inclined to each other.
5. Demonstrating a consistent set of rules; showing order, evenness of operation or occurrence.
6. Of a moon or other satellite: following a relatively close and prograde orbit with little inclination or eccentricity.
7. Well-behaved, orderly; restrained (of a lifestyle etc.).
8. Happening at constant (especially short) intervals.
9. Of a verb, plural, etc., following a set or common pattern; according to the general rules of a given language.
10. Having the expected characteristics or appearances; normal, ordinary, standard.
11. Permanently organised; being part of a set professional body of troops.
12. Having normal bowel movements or menstrual periods at constant intervals.
13. Exemplary; excellent example of; utter, downright.
14. Having all the parts of the same kind alike in size and shape.
15. Isometric.
16. Riding with the left foot forward.
17. Such that every set in its domain is both outer regular and inner regular.
18. Noetherian and such that the minimal number of generators of the maximal ideal is equal to the Krull dimension of the ring.
19. Such that the local ring at every point is regular.
20. A von Neumann regular: such that every left module (over the given ring) is flat.