planetary nebula
11planetary nebula — plan′etary neb′ula n. astron. an expanding shell of thin ionized gas that is ejected from and surrounds a hot, dying star • Etymology: 1775–85 …
12planetary nebula — /plænətri ˈnɛbjələ/ (say planuhtree nebyuhluh) noun shells of gas ejected from certain very hot stars …
13Planetary — Plan et*a*ry, a. [Cf. L. planetarius an astrologer, F. plan[ e]taire planetary. See {Planet}.] 1. Of or pertaining to the planets; as, planetary inhabitants; planetary motions; planetary year. [1913 Webster] 2. Consisting of planets; as, a… …
14Planetary days — Planetary Plan et*a*ry, a. [Cf. L. planetarius an astrologer, F. plan[ e]taire planetary. See {Planet}.] 1. Of or pertaining to the planets; as, planetary inhabitants; planetary motions; planetary year. [1913 Webster] 2. Consisting of planets; as …
15Planetary — means relating to a planet or planets. It can also refer to:* Planetary (comics), a DC comic book series by Warren Ellis and John Cassaday * Planetary habitability, the measure of an astronomical body s potential to develop and sustain life *… …
16planetary — (adj.) 1590s, from PLANET (Cf. planet) + ARY (Cf. ary). Latin planetarius only was attested as astrologer. Planetary nebula, so called for its shape, attested from 1785 …
17nebula — nebular, adj. /neb yeuh leuh/, n., pl. nebulae / lee , luy /, nebulas. 1. Astron. a. Also called diffuse nebula. a cloud of interstellar gas and dust. Cf. dark nebula, emission nebula, reflection nebula …
18Nebula — Nebulae redirects here. For the supercomputer in China, see Nebulae (computer). For other uses, see Nebula (disambiguation). The Pillars of Creation from the Eagle Nebula …
19Nebula (disambiguation) — A nebula is a cloud of gas and dust in space. Nebula may also refer to: Contents 1 Science fiction 2 Music 3 Other uses …
20nebula — Synonyms and related words: Black Magellanic Cloud, Crab Nebula, Gegenschein, bright diffuse nebula, coalsack, counterglow, dark cloud, dark nebula, diffuse nebula, dust cloud, gaseous nebula, nebula of Lyra, nebular hypothesis, nebulosity,… …
