book lung

book lung
noun
organ in many arachnids containing many thin folds of membrane resembling the leaves of a book
• Hypernyms: ↑respiratory organ

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noun
: a saccular breathing organ occurring in many arachnids that contains numerous thin folds of membrane arranged like the leaves of a book through which gaseous exchange takes place

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the respiratory organ of a spider, scorpion, or other arachnid, composed of thin, membranous structures arranged like the leaves of a book.
[1895-1900]

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book lung noun
The respiratory organ in spiders and other arachnids, formed of fine membranes like the leaves of a book
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Main Entry: ↑book

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book lung,
a breathing organ of some arachnids consisting of small sacs within the abdomen, connected with the outer air by small openings. Within each sac are many layers of tissue containing many blood vessels arranged like the leaves of a book.

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n. Zoology (in a spider or other arachnid) each of a pair of respiratory organs composed of many fine leaves. They are situated in the abdomen and have openings on the underside

Useful english dictionary. 2012.

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Look at other dictionaries:

  • book lung — bu̇k n a saccular breathing organ in many arachnids containing thin folds of membrane arranged like the leaves of a book * * * book lung a lunglike invagination that functions as a gas exchange organ, found on the underside of the abdomen of many …   Medical dictionary

  • book-lung — (bookґlung″) see under lung …   Medical dictionary

  • book lung — book′ lung n. ivt the respiratory organ of many arachnids, composed of thin, paperlike layers of tissue • Etymology: 1895–1900 …   From formal English to slang

  • Book lung — A book lung is a type of respiration organ used for atmospheric gas exchange and is found in arachnids, such as scorpions and spiders. Each of these organs is found inside a ventral abdominal cavity and connects with the surroundings through a… …   Wikipedia

  • book lung — the respiratory organ of a spider, scorpion, or other arachnid, composed of thin, membranous structures arranged like the leaves of a book. [1895 1900] * * * ▪ anatomy       form of respiratory organ found in certain air breathing arachnid… …   Universalium

  • book lung — noun Date: 1897 a saccular breathing organ in many arachnids containing thin folds of membrane arranged like the leaves of a book …   New Collegiate Dictionary

  • book lung — (ARTHROPODA: Chelicerata) A series of leaf like respiratory pouches of arachnids, located on the internal ventral surface of the abdomen, and believed to be modified insunken gills …   Dictionary of invertebrate zoology

  • book lung — noun A lamellate respiratory organ found in arachnids …   Wiktionary

  • book lung — noun Zoology (in an arachnid) each of a pair of respiratory organs in the abdomen, composed of many fine leaves …   English new terms dictionary

  • lung book — noun : book lung; especially : the functional laminated part of a book lung …   Useful english dictionary

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