We found 34 dictionaries that define the word horse chestnut:

General (25 matching dictionaries)

1. horse chestnut: Merriam-Webster
2. horse chestnut: Oxford Learner's Dictionaries
3. horse chestnut: American Heritage Dictionary of the English Language
4. horse chestnut: Collins English Dictionary
5. horse chestnut: Vocabulary.com
6. horse-chestnut: Wordnik
7. horse chestnut: Cambridge Advanced Learner's Dictionary
8. horse-chestnut, horse chestnut: Wiktionary
9. horse chestnut: The Wordsmyth English Dictionary-Thesaurus
10. horse chestnut: Infoplease Dictionary
11. Horse-chestnut, horse-chestnut, horse chestnut: Dictionary.com
12. horse-chestnut: Online Etymology Dictionary
13. Horse Chestnut, Horse-chestnut, Horse-chestnut (tree), Horse chestnut (disambiguation), Horse chestnut: Wikipedia, the Free Encyclopedia
14. Horse-chestnut: Online Plain Text English Dictionary
15. horse-chestnut: Webster's Revised Unabridged, 1913 Edition
16. horse chestnut: Rhymezone
17. Horse-chestnut: AllWords.com Multi-Lingual Dictionary
18. horse-chestnut: Webster's 1828 Dictionary
19. Horse-chestnut: Dictionary of Phrase and Fable (1898)
20. horse-chestnut, horse chestnut: FreeDictionary.org
21. horse chestnut: Mnemonic Dictionary
22. Horse-chestnut, horse chestnut: TheFreeDictionary.com
23. horse chestnut: Longman Dictionary of Contemporary English

Art (1 matching dictionary)

24. Horse Chestnut: Health & Beauty Glossary

Computing (1 matching dictionary)

25. Horse-chestnut, Horse-chestnut (tree), horse chestnut: Encyclopedia

Medicine (3 matching dictionaries)

26. online medical dictionary (No longer online)
27. Horse Chestnut: Glossary of Herbs, Botanicals and Other Products
28. Horse-chestnut, Horse-chestnut (tree), horse chestnut: Medical dictionary

Science (2 matching dictionaries)

29. Horse Chestnut: Botanical Name listing of Plants
30. A Modern Herbal, 1931, by Mrs. M. Grieve (No longer online)

Tech (2 matching dictionaries)

31. Organic Salon Glossary (No longer online)
32. Horse Chestnut: Beauty & Health Glossary

(Note: See horse_chestnuts as well.)

Definitions from Wiktionary (horse chestnut) ▸ noun:  Any of several tree species of genus Aesculus, especially Aesculus hippocastanum, common in temperate northern hemisphere. ▸ noun:  The large nutlike seed of these trees. Similar: conker, buckeye, Aesculus hippocastanum, horse-chestnut, chestnut, conker tree, chestnut tree, sweet chestnut, Chesnut, hackberry, more... Opposite: buckeye, conker Types: red horse chestnut, yellow buckeye, Ohio buckeye, Californibuckeye, more... Phrases: horse chestnut family, common horse chestnut, horse chestnut tree, Hundred Horse Chestnut, more... Adjectives: blanched almond, chestnut, almond, hazel, walnut, hickory, linden, spruce, wood, nut-brown, oaky ▸ Word origin ▸ Words similar to horse chestnut ▸ Usage examples for horse chestnut ▸ Idioms related to horse chestnut ▸ Wikipedia articles (New!) ▸ Words that often appear near horse chestnut ▸ Rhymes of horse chestnut ▸ Invented words related to horse chestnut