(economics) An industrial economy that aims to reduce waste and pollution by means of reuse, recycling, etc.

(computing) a series of references, where the last object references the first.

plural of circular reference

(computing) A linked list whose last element links to its first element.

a cone with a circular base

(mathematics) An angle that defines a position on a circle.

plural of circular angle

(finance, historical) A banknote issued for the convenience of travellers, being a kind of bill that is personal to the bearer, who is also given a corresponding 'letter of indication' addressed to foreign bankers.

plural of circular note

plural of circular cone