red seaweed

American  

noun

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

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red seaweed British  

noun

1. another term for red algae

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Etymology

Origin of red seaweed

First recorded in 1750–60

Example Sentences

Innovative feed additives, such as red seaweed, could reduce livestock methane emissions by 26% to 98%, depending on the type of additive and how it is administered.

From Salon

A twice-daily garlic and citrus extract can cut emissions by 20 percent, while a red seaweed additive can inhibit them by as much as 80 percent without impacting animal health or productivity or imparting detectable flavor to the resulting proteins.

From Scientific American

A twice-daily garlic and citrus extract can cut emissions by 20%, while a red seaweed additive can inhibit them by as much as 80% without impacting animal health or productivity or imparting detectable flavor to the resulting proteins.

From Salon

Steve Meller, an American businessperson in Australia, grows seaweed in giant glass tanks on land — specifically, a red seaweed native to the waters around Australia called asparagopsis, which beef and dairy companies are eyeing as a way to meet their climate goals.

From Seattle Times

Vanessa Rissetto writes for Food Network that "during the Irish potato famine in the 1800s, the Irish would add red seaweed to warmed milk with sugar and nutmeg and drink that when food options were limited."

From Salon