Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. See milkweed.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any plant of the genera Asclepias and Acerates whose seed vessels contain a long, silky down; milkweed.

from the GNU version of the Collaborative International Dictionary of English

  • n. Any plant of the genera Asclepias and Acerates whose seed vessels contain a long, silky down; milkweed.

from The Century Dictionary and Cyclopedia

  • n. A common name for the Confervaceæ, or fresh-water algæ that consist of long, soft filaments resembling silk. See Confervaceæ
  • n. Same as milkweed, 1.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. any of numerous plants of the genus Asclepias having milky juice and pods that split open releasing seeds with downy tufts

Etymologies

silk +‎ weed (Wiktionary)

Examples

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