terrestrial planet: a planet having a compact rocky surface like the Earth's; the four innermost planets in the solar system
planet: (astronomy) any of the nine large celestial bodies in the solar system that revolve around the sun and shine by reflected light; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto in order of their proximity to the sun; viewed from the constellation Hercules, all the planets rotate around the sun in a counterclockwise direction
pancreatic vein: veins draining the pancreas and emptying into the superior mesenteric and splenic veins