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...
- 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...
- Planetary symbols are used in astrology and traditionally in astronomy to represent a classical planet (which includes the Sun and the Moon) or one of...
- Planetary romance (other synonyms are sword and planet, and (inter)planetary adventure) is a subgenre of science fiction or science fantasy in which the...
- 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...
- A planetary system is a set of gravitationally bound non-stellar bodies in or out of orbit around a star or star system. Generally speaking, systems with...
- 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...
- Understanding of the Origin of Planetary Systems". Strategy for the Detection and Study of Other Planetary Systems and Extrasolar Planetary Materials: 1990–2000...
- Planetary science (or more rarely, planetology) is the scientific study of planets (including Earth), celestial bodies (such as moons, asteroids, comets)...
- Planetary boundaries are a framework to describe limits to the impacts of human activities on the Earth system. Beyond these limits, the environment may...