Phrase guide
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Sound
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No pronunciation record was provided for this word.
noun
A gill found in horseshoe crabs consisting of membranous folds, resembling the leaves of a book.
Definition source: English Wiktionary via Wiktextract
Topics: biology, natural-sciences, zoology
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
No etymology was provided for this word.
