alligator weed

/ˌæləˈgeɪdər wid/
IPA guide

Definitions of alligator weed
  1. noun
    prolific South American aquatic weed having grasslike leaves and short spikes of white flowers; clogs waterways with dense floating masses
    synonyms: Alternanthera philoxeroides, alligator grass
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    type of:
    weed
    any plant that crowds out cultivated plants
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