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We found 20 dictionaries with English definitions that include the word radio astronomy:
Click on the first link on a line below to go directly to a page where "radio astronomy" is defined.

General (17 matching dictionaries)

1. radio astronomy: Merriam-Webster.com [home, info]
2. radio astronomy: Oxford Dictionaries [home, info]
3. radio astronomy: American Heritage Dictionary of the English Language [home, info]
4. radio astronomy: Collins English Dictionary [home, info]
5. radio astronomy: Vocabulary.com [home, info]
6. radio astronomy: Wiktionary [home, info]
7. radio astronomy: The Wordsmyth English Dictionary-Thesaurus [home, info]
8. radio astronomy: Infoplease Dictionary [home, info]
9. radio astronomy: Dictionary.com [home, info]
10. radio astronomy: UltraLingua English Dictionary [home, info]
11. Radio Astronomy, Radio astronomy: Wikipedia, the Free Encyclopedia [home, info]
12. radio astronomy: Rhymezone [home, info]
13. radio astronomy: Free Dictionary [home, info]
14. radio astronomy: Mnemonic Dictionary [home, info]
15. radio astronomy: WordNet 1.7 Vocabulary Helper [home, info]
16. radio astronomy: LookWAYup Translating Dictionary/Thesaurus [home, info]
17. radio astronomy: Dictionary/thesaurus [home, info]

Computing (1 matching dictionary)

18. radio astronomy: Encyclopedia [home, info]

Science (2 matching dictionaries)

19. Radio Astronomy, radio astronomy: Extragalactic Astronomy [home, info]
20. RADIO ASTRONOMY: Zoom Astronomy Glossary [home, info]

(Note: See radio_astronomical for more definitions.)

Quick definitions from WordNet (radio astronomy) ▸ noun:  the branch of astronomy that detects and studies the radio waves emitted by celestial bodies ▸ Also see radio_astronomical ▸ Words similar to radio astronomy ▸ Usage examples for radio astronomy ▸ Words that often appear near radio astronomy ▸ Rhymes of radio astronomy ▸ Invented words related to radio astronomy