book lung
noun
the respiratory organ of a spider, scorpion, or other arachnid, composed of thin, membranous structures arranged like the leaves of a book.
Origin of book lung
First recorded in 1895–1900
Words nearby book lung
Scientific definitions for book lung
book lung
[ buk ]
The breathing organ of scorpions, spiders, and some other arachnids. It consists of membranes arranged in several parallel folds like the pages of a book.