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red seaweed

American

noun

any marine red alga, especially one of the genus Polysiphonia, having a reddish, much branched thallus.

red seaweed British

noun

another term for red algae

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of red seaweed

First recorded in 1750–60

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Perth-based start-up Rumin8 is working on a dietary supplement - synthetically replicated from red seaweed - which stops the creation of the gas.

From BBC • Jan. 23, 2023

For the red seaweed Gracilaria gracilis, which grows in scraggly clumps, this is a particular problem.

From Scientific American • Jul. 28, 2022

Indeed, one 12-week study of people consuming 1,000 milligrams of red seaweed extract per day reported having a reduction in total body weight compared to the placebo group.

From Salon • Jun. 19, 2022

Cooking not only turns the red seaweed green, it pulls out a smoky, umami flavor.

From Seattle Times • Mar. 13, 2022

“They look like red seaweed dipped in water,” he said.

From Bevis The Story of a Boy by Jefferies, Richard

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023