noun
a type of blue-green algae that is commonly used as a dietary supplement
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Spirulina is a type of blue-green algae that is rich in protein and nutrients.
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I heard that spirulina is really good for you, so I started adding it to my smoothies.
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Spirulina is like a superfood powerhouse, dude.
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The spirulina in her diet gave her the energy and strength to tackle any challenge.