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Noun: great duckweed
  1. Cosmopolitan except South America and New Zealand and some oceanic islands
    - water flaxseed, Spirodela polyrrhiza

Derived forms: great duckweeds

Type of: duckweed

Part of: genus Spirodela, Spirodela

Nearest

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great circle
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great deal
Great Depression
Great Divide
Great Dividing Range
Great Dog
great duckweed
Great Elector
Great Falls
great grandchild
great granddaughter
great grandfather
great grandmother
great grandparent
great grandson
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great grey kangaroo