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We found 24 dictionaries with English definitions that include the word planetesimal: Click on the first link on a line below to go directly to a page where "planetesimal" is defined. General (20 matching dictionaries) planetesimal: American Heritage Dictionary of the English Language [home, info] planetesimal: Collins English Dictionary [home, info] planetesimal: Vocabulary.com [home, info] planetesimal: Merriam-Webster's Online Dictionary, 11th Edition [home, info] planetesimal: Wordnik [home, info] planetesimal: Wiktionary [home, info] planetesimal: Compact Oxford English Dictionary [home, info] planetesimal: Webster's New World College Dictionary, 4th Ed. [home, info] planetesimal: The Wordsmyth English Dictionary-Thesaurus [home, info] planetesimal: Infoplease Dictionary [home, info] planetesimal: Dictionary.com [home, info] planetesimal: UltraLingua English Dictionary [home, info] Planetesimal: Wikipedia, the Free Encyclopedia [home, info] planetesimal: Rhymezone [home, info] planetesimal: Free Dictionary [home, info] planetesimal: The Phrontistery - A Dictionary of Obscure Words [home, info] planetesimal: Mnemonic Dictionary [home, info] planetesimal: WordNet 1.7 Vocabulary Helper [home, info] planetesimal: LookWAYup Translating Dictionary/Thesaurus [home, info] planetesimal: Dictionary/thesaurus [home, info] Computing (1 matching dictionary) planetesimal: Encyclopedia [home, info] Science (1 matching dictionary) PLANETESIMAL: Zoom Astronomy Glossary [home, info] Slang (1 matching dictionary) Planetesimal: Urban Dictionary [home, info] Tech (1 matching dictionary) planetesimal, planetesimal: JPL Terms [home, info]

Quick definitions from WordNet (planetesimal) ▸ noun:  one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system