book gills

A form of book gill — A gill found in horseshoe crabs consisting of membranous folds, resembling the leaves of a book.

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Meanings

noun
  1. pluralplural of book gill
Cite this entry
APA

book gills. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/book%20gills

MLA

“book gills.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/book%20gills. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “book gills,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/book%20gills.

Source: book gills on Wiktionary, CC BY-SA 4.0.