(mathematics) A system of iterated functions used to construct fractals

(zoology) A saucer-shaped depression surrounded by tracks, dug by the male kakapo to enhance its booming mating call.

Synonym of Dewey Decimal Classification

A system aimed at controlling pollution by allocating each firm a certain amount of pollution permits which allows them to pollute up to a certain limit. If firms pollute less, they are able to sell there permits to firms that pollute more hence creating a permits market.

a system for linking front and rear brakes on a motorcycle or scooter

The strategy in organizations of only responding to filed complaints while ignoring known but unvoiced issues.

(computing) An error that occurs when an operating system halts, because it has reached a condition where it can no longer operate safely.

plural of fatal system error

Synonym of second-system effect

plural of second-system syndrome