We found 24 dictionaries that define the word equisetum:

General (19 matching dictionaries)

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

Computing (1 matching dictionary)

20. Equisetum: Encyclopedia

Medicine (3 matching dictionaries)

21. Medical Dictionary (No longer online)
22. online medical dictionary (No longer online)
23. Equisetum: Medical dictionary

Science (1 matching dictionary)

24. Equisetum: Botanical Name listing of Plants

(Note: See equiseta as well.)

Definitions from Wiktionary (equisetum) ▸ noun:  The horsetail (plant of genus Equisetum) Similar: genus equisetum, equisetalean, great horsetail, common horsetail, equisetid, rough horsetail, equisetopsid, field horsetail, wood horsetail, marsh horsetail, more... Phrases: Equisetum arvense, equisetum fluviatile, genus equisetum, Equisetum hyemale, equisetum sylvaticum, more... Adjectives: modern, single, subgenus, recent, common, tallest, scirpus, extant, day, large, gigantic ▸ Words similar to equisetum ▸ Usage examples for equisetum ▸ Idioms related to equisetum ▸ Wikipedia articles (New!) ▸ Popular adjectives describing equisetum ▸ Words that often appear near equisetum ▸ Rhymes of equisetum ▸ Invented words related to equisetum