book lung: meaning, definition, pronunciation and examples
LowTechnical/Scientific
Quick answer
What does “book lung” mean?
A respiratory organ found in some arachnids (like spiders and scorpions) consisting of stacked, leaf-like plates through which gas exchange occurs.
Audio
Pronunciation
Definition
Meaning and Definition
A respiratory organ found in some arachnids (like spiders and scorpions) consisting of stacked, leaf-like plates through which gas exchange occurs.
A specialized breathing structure in certain arthropods, named for its resemblance to the pages of a book, where air circulates between thin, parallel membranes for oxygen absorption.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling remains consistent.
Connotations
Purely technical/descriptive in both varieties.
Frequency
Equally low frequency in both UK and US English, confined to specialized fields.
Grammar
How to Use “book lung” in a Sentence
The [arachnid] has a book lung.The book lung allows for [process].Gas exchange occurs in the book lung.Vocabulary
Collocations
Usage
Meaning in Context
Business
Not used.
Academic
Used in biology, zoology, and arachnology papers and textbooks.
Everyday
Virtually never used in everyday conversation.
Technical
The primary context; used to describe arachnid anatomy.
Watch out
Common Mistakes When Using “book lung”
- Using it as a general term for any lung (it is specific to arachnids).
- Misspelling as 'book-lung' (hyphen is sometimes used but less common).
- Confusing it with 'book gill' (a similar structure in horseshoe crabs).
FAQ
Frequently Asked Questions
No, not all. Most spiders have book lungs, but some smaller spiders rely solely on a tracheal system for respiration.
It is named for its physical structure, which consists of many thin, parallel plates or lamellae that resemble the pages of a book.
No. They are analogous organs (both for gas exchange) but are not homologous. Their structure and evolutionary origin are completely different.
Book lungs are also found in scorpions and some other arachnids like whip scorpions and certain mites.
A respiratory organ found in some arachnids (like spiders and scorpions) consisting of stacked, leaf-like plates through which gas exchange occurs.
Book lung is usually technical/scientific in register.
Book lung: in British English it is pronounced /ˈbʊk ˌlʌŋ/, and in American English it is pronounced /ˈbʊk ˌlʌŋ/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Imagine a tiny book inside a spider, with each 'page' helping it breathe.
Conceptual Metaphor
BOOK AS LAYERED STRUCTURE (The organ is like a book because it has many thin, stacked plates).
Practice
Quiz
What is a 'book lung'?