(science fiction) The Solar System

(rail transport) A rail system used in mountainous terrain with multiple cograils.

an electromechanical system composed of micron-sized components (of the range 1μm–100μm) in a millimetre-sized system (of the range 0.02mm–1mm)

(astronomy) A geocentric model of the solar system, described by the eponymous astronomer.

The hierarchical organization of the kitchen staff in a restaurant into small teams or individuals, each responsible for a type of food (starters, mains etc) under the overall control of a head chef.

(music) A method of musical composition based on mathematical processes, comprising theories of rhythm, harmony, melody, counterpoint, form, and semantics.

(computing) A person who oversees the day-to-day operation of a computer system

(automotive) The subsystem of an engine that takes in air from the environment and delivers it to the combustion chamber

(automotive) The subsystem of an engine that takes the products of the combustion chamber through a catalytic converter and silencer to the exhaust pipe

(philosophy) A consistent set of moral axioms or principles.