noun
specialized stinging structures found in some cnidarians, such as sea anemones and jellyfish
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The acrorhagi are specialized stinging structures found on the tentacles of certain species of sea anemones.
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Watch out for those acrorhagi on the anemone tentacles, they can really sting!
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I got zapped by one of those acrorhagi things on the sea anemone, it hurt like crazy!
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Her words were like acrorhagi, sharp and stinging, leaving a lasting impact on those who heard them.