noun
a structure found in certain cnidarians, such as jellyfish, that contains stinging cells called cnidocytes
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The acontia are specialized structures found in the tentacles of certain sea anemones.
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I learned that acontia are like the secret weapons of sea anemones.
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Those acontia things in sea anemones are like their ninja moves.
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Just like acontia in sea anemones, sometimes we all have hidden abilities waiting to be unleashed.