(neuroanatomy) The autonomic nervous system.

(zoology) The hydraulic system found in the bodies of all echinoderms, which allows for a continuous flow of water through canals to the tube feet, and performs a range of body functions.

A technique for drawing diagrams of syntactic structure, based on a subject and a verbal predicate, with modifiers written on slanted lines leading off from the words they modify.

(object-oriented programming) A concept for computer language types where a primitive type can support methods and encapsulation, but only reference types support virtual methods and specialization.

(travel, aviation) a multi-access reservation system used by the travel industry and airlines.

A subdivision of the peripheral nervous system that directly controls the gastrointestinal system.

The part of the peripheral nervous system that transmits signals from the central nervous system to skeletal muscles, and from receptors of external stimuli, thereby mediating sight, hearing and touch.

A system of circulation which is achieved primarily from the heart beating and muscle-induced locomotion of the organism, circulation without veins.

blood circulation via the pumping of the heart pushing blood through closed vessels

(of an emotional state, often with get) Eliminated from one's disposition, mindset, or concerns. / (literally) Physically eliminated from the body.