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

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

(astronomy) A heliocentric model of the solar system, proposed in the 16th century by the eponymous astronomer.

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

plural of bulletin board system

plural of space power system

The area of the Solar System that comprises certain objects that are relatively far from the Sun, including Jupiter, Saturn, Uranus and Neptune, while not including the other planets.

The area of the Solar System that comprises certain objects that are relatively close to the Sun, including Mercury, Venus, Earth and Mars, while not including the other planets.

A system of railroad equipment designed to ensure safety by monitoring locations of trains and locomotives, providing analysis and reporting, and automation of track warrants and similar orders.

plural of systems analyst