We found 42 dictionaries that define the word geology:

General (30 matching dictionaries)

1. geology: Merriam-Webster
2. geology: Oxford Learner's Dictionaries
3. geology: American Heritage Dictionary of the English Language
4. geology: Collins English Dictionary
5. geology: Vocabulary.com
6. Geology, geology: Wordnik
7. geology: Cambridge Advanced Learner's Dictionary
8. geology: Wiktionary
9. geology: Webster's New World College Dictionary, 4th Ed.
10. geology: The Wordsmyth English Dictionary-Thesaurus
11. geology: Infoplease Dictionary
12. geology: Dictionary.com
13. geology: Online Etymology Dictionary
14. geology: Cambridge Essential American English Dictionary
15. Geology (journal), Geology: Wikipedia, the Free Encyclopedia
16. Geology: Online Plain Text English Dictionary
17. geology: Webster's Revised Unabridged, 1913 Edition
18. geology: Rhymezone
19. geology: AllWords.com Multi-Lingual Dictionary
20. geology: Webster's 1828 Dictionary
21. geology: Stammtisch Beau Fleuve Acronyms
22. Geology: Dictionary of Phrase and Fable (1898)
23. geology: FreeDictionary.org
24. geology: The Phrontistery - A Dictionary of Obscure Words
25. geology: Mnemonic Dictionary
26. geology: TheFreeDictionary.com
27. geology: Wikimedia Commons US English Pronunciations
28. geology: Longman Dictionary of Contemporary English

Computing (1 matching dictionary)

29. Geology, geology: Encyclopedia

Medicine (1 matching dictionary)

30. online medical dictionary (No longer online)

Miscellaneous (1 matching dictionary)

31. AbbreviationZ (No longer online)

Science (6 matching dictionaries)

32. Archaeology Wordsmith (No longer online)
33. Earthquake Image Glossary (No longer online)
34. Illustrated Glossary of Geologic Terms (No longer online)
35. Geology: Extragalactic Astronomy
36. Geology: USGS Paleontology Glossary of Terms
37. GEOLOGY: Zoom Astronomy Glossary

Slang (1 matching dictionary)

38. geology: Urban Dictionary

Tech (2 matching dictionaries)

39. Lake and Water Word Glossary (No longer online)
40. Schlumberger Oilfield Glossary (No longer online)

(Note: See geologies as well.)

Definitions from Wiktionary ( ) ▸ noun:  The science that studies the structure of the earth (or other planets), together with its origin and development, especially by examination of its rocks. ▸ noun:  The geological structure of a region. Similar: formation, Geological formation, earth science, geogony, geognosy, petrology, astrogeology, geochemistry, morphology, geonomy, more... Opposite: biology, sociology, philosophy, psychology, anthropology Types: sedimentary, igneous, metamorphic, plutonic, volcanic, more... Phrases: Economic geology, Structural geology, marine geology, Petroleum geology, Engineering geology, more... Adjectives: structural, economic, historical, general, local, physical, regional, modern, glacial, sedimentary, marine Colors:     brown,     gray,     rust,     ochre,     sand, more... ▸ Word origin ▸ Words similar to geology ▸ Usage examples for geology ▸ Idioms related to geology ▸ Wikipedia articles (New!) ▸ Popular adjectives describing geology ▸ Words that often appear near geology ▸ Rhymes of geology ▸ Invented words related to geology