We found 20 dictionaries that define the word astrobiology:

General (16 matching dictionaries)

1. astrobiology: Merriam-Webster
2. astrobiology: Oxford Learner's Dictionaries
3. astrobiology: American Heritage Dictionary of the English Language
4. astrobiology: Collins English Dictionary
5. astrobiology: Vocabulary.com
6. Astrobiology, astrobiology: Wordnik
7. astrobiology: Wiktionary
8. astrobiology: Webster's New World College Dictionary, 4th Ed.
9. astrobiology: Infoplease Dictionary
10. astrobiology: Dictionary.com
11. Astrobiology (journal), Astrobiology: Wikipedia, the Free Encyclopedia
12. astrobiology: Rhymezone
13. astrobiology: FreeDictionary.org
14. astrobiology: Mnemonic Dictionary
15. astrobiology: TheFreeDictionary.com
16. astrobiology: Merriam-Webster

Computing (1 matching dictionary)

17. astrobiology: Encyclopedia

Medicine (2 matching dictionaries)

18. astrobiology: Merriam-Webster Medical Dictionary
19. online medical dictionary (No longer online)

Science (1 matching dictionary)

20. ASTROBIOLOGY: Zoom Astronomy Glossary

(Note: See astrobiologist as well.)

Definitions from Wiktionary (astrobiology) ▸ noun:  (sciences) The study of life anywhere in the universe, including Earth. Similar: astronomy, abiology, astrovirology, astrogeometry, universology, lifelore, astroecology, astrochemistry, astrogeology, xenology, more... Opposite: terrestrial biology, earthbound biology Types: extremophile, exoplanet, panspermia, methanogen, thermophile, more... ▸ Words similar to astrobiology ▸ Usage examples for astrobiology ▸ Idioms related to astrobiology ▸ Wikipedia articles (New!) ▸ Popular adjectives describing astrobiology ▸ Words that often appear near astrobiology ▸ Rhymes of astrobiology ▸ Invented words related to astrobiology