noun
Acantharia is a group of marine protozoans that are characterized by their spiny skeletons.
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Acantharia are a type of marine protozoa characterized by their intricate skeletal structures.
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Have you ever seen those cool looking acantharia in the ocean? They're like little underwater snowflakes!
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Check out the funky acantharia floating around in the water, they're so trippy!
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The acantharia in the ocean remind me of delicate crystal ornaments adorning the sea.