rockweed

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noun

Ascophyllum nodosum, a seaweed also known as knotted wrack.

Scrabble 18
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Meanings

nounrockweed (countable and uncountable, plural rockweeds)

plural rockweeds

  1. countableuncountableAscophyllum nodosum, a seaweed also known as knotted wrack.
  2. countableuncountableFucus vesiculosus, a similar seaweed also known as bladderwrack.

Synonyms & antonyms

Also see
bladder wrackbladderwrackknotted wrack

Origin

From rock + weed.

Full word history & related roots →
Cite this entry
APA

rockweed. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/rockweed

MLA

“rockweed.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rockweed. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “rockweed,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/rockweed.

Source: rockweed on Wiktionary, CC BY-SA 4.0.