Definition of planetary. Meaning of planetary. Synonyms of planetary

- Look up planetary in Wiktionary, the free dictionary. Planetary means relating to a planet or planets. It can also refer to: Planetary habitability, the...
- A planetary nebula is a type of emission nebula consisting of an expanding, glowing s**** of ionized gas ejected from red giant stars late in their lives...
- An epicyclic gear train (also known as a planetary ge****t) is a gear reduction ****embly consisting of two gears mounted so that the center of one gear...
- A planetary system is a set of gravitationally bound non-stellar objects in or out of orbit around a star or star system. Generally speaking, systems...
- Planetary science (or more rarely, planetology) is the scientific study of planets (including Earth), celestial bodies (such as moons, asteroids, comets)...
- Planetary romance (or sword and planet) is a subgenre of science fiction in which the bulk of the action consists of adventures on one or more exotic...
- Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and maintain environments hospitable to life. Life may...
- Planetary boundaries are a framework to describe limits to the impacts of human activities on the Earth system. Beyond these limits, the environment may...
- Planetary is an American comic book series created by writer Warren Ellis and artist John C****aday, and published by the Wildstorm imprint of DC Comics...
- Planetary Annihilation is a real-time strategy PC game originally developed by Uber Entertainment, whose staff included several video game industry veterans...