We found 27 dictionaries that define the word drainage basin:

General (15 matching dictionaries)

1. drainage basin: Merriam-Webster
2. drainage basin: American Heritage Dictionary of the English Language
3. drainage basin: Collins English Dictionary
4. drainage basin: Vocabulary.com
5. drainage-basin: Wordnik
6. drainage basin: Cambridge Advanced Learner's Dictionary
7. drainage basin: Wiktionary
8. drainage basin: The Wordsmyth English Dictionary-Thesaurus
9. drainage basin: Infoplease Dictionary
10. drainage basin: Dictionary.com
11. Drainage basin: Wikipedia, the Free Encyclopedia
12. drainage basin: Rhymezone
13. drainage basin: FreeDictionary.org
14. drainage basin: Mnemonic Dictionary
15. drainage basin: TheFreeDictionary.com

Business (1 matching dictionary)

16. Drainage basin: Energy Dictionary

Computing (1 matching dictionary)

17. drainage basin: Encyclopedia

Medicine (1 matching dictionary)

18. drainage basin: Medical dictionary

Science (3 matching dictionaries)

19. Botanical Terms (No longer online)
20. Illustrated Glossary of Geologic Terms (No longer online)
21. drainage basin: Dictionary of Geology

Tech (6 matching dictionaries)

22. Glossary of Meteorology (No longer online)
23. Glossary of Agricultural Terms, Programs and Laws (No longer online)
24. Lake and Water Word Glossary (No longer online)
25. National Weather Service Glossary (No longer online)
26. Drainage basin: Science In Your Watershed: Hydrologic Definitions
27. Water-Science Glossary of Terms (No longer online)

(Note: See drainage_basins as well.)

Definitions from Wiktionary (drainage basin) ▸ noun:  (hydrology) A topographic region in which all water drains to a common outlet; a watershed. Similar: catchment basin, catchment area, drainage area, drainage system, water parting, watershed, watershedding, water table, hydrograph, drip line, more... Opposite: watershed, divide, water parting Types: Amazon River Basin, Congo River Basin, Nile River Basin, Yangtze River Basin, Ganges River Basin, Danube River Basin, Mekong River Basin, Indus River Basin, more... Phrases: Hudson Bay drainage basin, Columbia River drainage basin, more... ▸ Words similar to drainage basin ▸ Usage examples for drainage basin ▸ Idioms related to drainage basin ▸ Wikipedia articles (New!) ▸ Words that often appear near drainage basin ▸ Rhymes of drainage basin ▸ Invented words related to drainage basin