Definition of Planetary Nebula in English :
Define Planetary Nebula in English
Planetary Nebula meaning in English
Meaning of Planetary Nebula in English
Pronunciation of Planetary Nebula in English
Planetary Nebula pronunciation in English
Pronounce Planetary Nebula in English
Planetary Nebula
see synonyms of planetary nebulaNoun
1. planetary nebula
a nebula that was once thought to be a star with its planets but is now thought to be a very hot star surrounded by an expanding envelope of ionized gases that emit a fluorescent glow because of intense radiation from the star
WordNet Lexical Database for English. Princeton University. 2010.
Planetary Nebula
see synonyms of planetary nebulaCollins English Dictionary. Copyright © HarperCollins Publishers
Planetary Nebula
see synonyms of planetary nebulaWebster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
Planetary Nebula
see synonyms of planetary nebulaThe American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.