noun
a larval form of a phoronid worm characterized by a band of cilia used for locomotion
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The actinotrocha is a larval stage in the life cycle of certain marine animals.
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Have you ever seen an actinotrocha swimming in the ocean? It's quite fascinating!
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That actinotrocha larva is like a tiny alien swimming in the sea.
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The actinotrocha represents the beginning of a new chapter in the animal's life.