Definition of "bladderwrack" []

• Fucus vesiculosus, a seaweed in which iodine was first discovered. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "Fucus Vesiculosus, or bladderwrack is a seaweed rich in iodine, which, if used in safe quantities, can prevent under-active thyroid in the same way iodized salt does."
• "Fucus vesiculosus, a seaweed also known as bladderwrack, gets a " C " grade as a diet aid from Natural Standard Research Collaboration, a Cambridge, Mass., scientist-owned group that evaluates natural therapies ."
• "Seaweeds such as bladderwrack can become contaminated with heavy metals."