We found 24 dictionaries that define the word hydrosphere:

General (17 matching dictionaries)

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

Computing (1 matching dictionary)

18. hydrosphere: Encyclopedia

Medicine (1 matching dictionary)

19. online medical dictionary (No longer online)

Science (2 matching dictionaries)

20. Geography Dictionary (No longer online)
21. Weather Glossary (No longer online)

Tech (3 matching dictionaries)

22. Glossary of Meteorology (No longer online)
23. Lake and Water Word Glossary (No longer online)
24. Glossary of Water Resource Terms (No longer online)

(Note: See hydrospheres as well.)

Definitions from Wiktionary (hydrosphere) ▸ noun:  All the liquid waters of the Earth or another astronomical body, as distinguished from the land and the gases of the atmosphere. Similar: hydrospace, Water Hemisphere, hydroclimate, hydrosystem, hydrology, water, hydrium, hydros, hydroplasm, hemisphere, more... Opposite: atmosphere, lithosphere, biosphere, cryosphere Types: groundwater, lakes, rivers, ponds, streams, wetlands, aquifers, reservoirs, ice caps, more... Adjectives: entire, present, primitive, liquid, total, whole, early, underground, terrestrial, marine, subterranean ▸ Words similar to hydrosphere ▸ Usage examples for hydrosphere ▸ Idioms related to hydrosphere ▸ Wikipedia articles (New!) ▸ Popular adjectives describing hydrosphere ▸ Words that often appear near hydrosphere ▸ Rhymes of hydrosphere ▸ Invented words related to hydrosphere