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red seaweed

noun

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


red seaweed

noun

  1. 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


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Word History and Origins

Origin of red seaweed1

First recorded in 1750–60
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Example Sentences

Feed additives like Mootral’s products or red seaweed could immediately reduce cattle’s methane emissions, as could incorporating more fats and proteins into their diets.

Love deep as the sea as a rose must wither,As the rose-red seaweed that mocks the rose.

The next thing that Laughing Sapphire found was a glowing piece of red seaweed.

"See the pretty red seaweed on the rocks, mamma," cried a little boy, pointing to the low ledge on the bank of the east channel.

These were all entangled in a mass of red seaweed, interlaced with stalks of the Macrocystis.

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Red Sea, parting of thered setter