Definition: The word "adiantum" appears to be a Greek term meaning "the head". It doesn't have any specific definition as it seems like an arbitrary term that may not have a specific meaning in English. However, if you're referring to an object or feature that has a central and prominent head, then the word "adiantum" could refer to something similar. If so, it might be related to a decorative or ornamentation element on a piece of furniture or other artwork. If this is a question about a specific type of adiantum, like an artificial organ for example, there may be more detailed information available online that would help you understand the meaning and context of the term.
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what should be said.