We found 27 dictionaries that define the word duckweed:

General (24 matching dictionaries)

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

Computing (1 matching dictionary)

23. duckweed: Encyclopedia

Medicine (1 matching dictionary)

24. online medical dictionary (No longer online)

Tech (1 matching dictionary)

25. Lake and Water Word Glossary (No longer online)

(Note: See duckweeds as well.)

Definitions from Wiktionary ( ) ▸ noun:  Any of several reduced floating aquatic plants in the subfamily Lemnoideae of the family Araceae. Similar: weed, waterweed, riverweed, duckweed fern, ribbonweed, waterwort, American pondweed, widgeonweed, matweed, elodea, more... Types: Lemna, Spirodela, Wolffia, Landoltia, Lemnminor, Lemntrisulca, Lemnvaldiviana, more... Phrases: lesser duckweed, common duckweed, duckweed family, great duckweed, star duckweed, more... Adjectives: common, green, leaved, white, much, little, dirty, tiny, fresh, small, large ▸ Words similar to duckweed ▸ Usage examples for duckweed ▸ Idioms related to duckweed ▸ Wikipedia articles (New!) ▸ Popular adjectives describing duckweed ▸ Words that often appear near duckweed ▸ Rhymes of duckweed ▸ Invented words related to duckweed