We found 30 dictionaries that define the word hummock:

General (25 matching dictionaries)

1. hummock: Merriam-Webster
2. hummock: Oxford Learner's Dictionaries
3. hummock: American Heritage Dictionary of the English Language
4. hummock: Collins English Dictionary
5. hummock: Vocabulary.com
6. Hummock, hummock: Wordnik
7. hummock: Cambridge Advanced Learner's Dictionary
8. hummock: Wiktionary
9. hummock: Webster's New World College Dictionary, 4th Ed.
10. hummock: The Wordsmyth English Dictionary-Thesaurus
11. hummock: Infoplease Dictionary
12. Hummock, hummock: Dictionary.com
13. hummock: Online Etymology Dictionary
14. Hummock: Wikipedia, the Free Encyclopedia
15. Hummock: Online Plain Text English Dictionary
16. hummock: Webster's Revised Unabridged, 1913 Edition
17. hummock: Rhymezone
18. Hummock: AllWords.com Multi-Lingual Dictionary
19. hummock: FreeDictionary.org
20. hummock: The Phrontistery - A Dictionary of Obscure Words
21. hummock: Mnemonic Dictionary
22. hummock: TheFreeDictionary.com
23. hummock: Longman Dictionary of Contemporary English

Computing (1 matching dictionary)

24. hummock: Encyclopedia

Science (1 matching dictionary)

25. Botanical Terms (No longer online)

Tech (3 matching dictionaries)

26. Glossary of Meteorology (No longer online)
27. Lake and Water Word Glossary (No longer online)
28. National Weather Service Glossary (No longer online)

(Note: See hummocking as well.)

Definitions from Wiktionary ( ) ▸ noun:  A small hill; a hillock; a knoll. ▸ noun:  A ridge or hill of ice in an ice field. ▸ noun:  (Scotland) A fistful. Similar: mound, hillock, knoll, hammock, hommock, hilloc, Holme, hogh, holk, humpback, more... Opposite: knoll, knob, knobble, knoblike, knobbed, knobby Types: cairn, motte, barrow, howe, more... Phrases: hillock or hummock, more... Adjectives: small, little, grassy, low, high, large, great, mere, big, dry, mossy ▸ Word origin ▸ Words similar to hummock ▸ Usage examples for hummock ▸ Idioms related to hummock ▸ Wikipedia articles (New!) ▸ Popular adjectives describing hummock ▸ Words that often appear near hummock ▸ Rhymes of hummock ▸ Invented words related to hummock