Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A thin serous membrane in mammals that envelops each lung and folds back to make a lining for the chest cavity.
  • n. Plural of pleuron.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The smooth serous membrane which closely covers the lungs and the adjacent surfaces of the thorax; the pleural membrane.
  • n. Plural form of pleuron.

from the GNU version of the Collaborative International Dictionary of English

  • n. pl. of pleuron.
  • n.
  • n. The smooth serous membrane which closely covers the lungs and the adjacent surfaces of the thorax; the pleural membrane.
  • n. The closed sac formed by the pleural membrane about each lung, or the fold of membrane connecting each lung with the body wall.
  • n. Same as Pleuron.

from The Century Dictionary and Cyclopedia

  • The principal serous membrane of the thorax; the shut sac, having a serous surface, which lines the walls of the chest, and is reflected over the surface of each lung.
  • In conchology, one of the lateral tracts on each side of the rachis of the lingual ribbon of the odontophore: generally used in the plural.
  • In comparative anatomy, the lateral portion of one of the rings composing the integument of an arthropod or articulate animal, lying between the tergum and sternum, and in insects and crustaceans consisting of two pieces, the epimeron and episternum.
  • All the parts of the pleura except the pulmonary portion.
  • n. Plural of pleuron.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the thin serous membrane around the lungs and inner walls of the chest

Etymologies

Middle English, from Medieval Latin, from Greek, side, rib.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Ancient Greek πλευρά (pleura, "a rib, a side of something"). (Wiktionary)

Examples

  • The pleura is the membrane that surrounds the lungs and lines the wall of the chest cavity.

    Balkinization

  • His discomfort due to fluid, which is causing the thin lining outside the lungs, called the pleura, to thicken and collapse.

    CNN Transcript Mar 8, 2005

  • * — The pleura is a thin, smooth, elastic, and tough membrane which covers the outside of the lungs and lines the inside of the chest walls.

    Physiology and Hygiene for Secondary Schools

  • -- The pleura is the tender double web, or membrane, which lines the inside of the chest on the one side and covers the lung, or rather encloses the lung with its other fold.

    Papers on Health

  • Each lung is invested by an exceedingly delicate serous membrane, the pleura, which is arranged in the form of a closed invaginated sac.

    XI. Splanchnology. 1c. The Pleuræ

  • The pleura is a thin membrane that envelops the lung and lines the walls of the thoracic cavity.

    Special Report on Diseases of the Horse

  • The pleura is the thin, glistening membrane that covers the lung and also completely covers the internal walls of the chest.

    Special Report on Diseases of the Horse

  • The cavity of the thorax is lined by a membrane, termed pleura, which covers the surface of the lungs.

    The Dog

  • They are separated by the diaphragm, and are enveloped by their own covering, called the pleura, and form that part of the body called the chest.

    Angelic Wisdom Concerning the Divine Love and the Divine Wisdom

  • Pleural mesothelioma is a condition that affects the lungs, specifically the pleura, which is a protective membrane.

    EzineArticles

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  • "...had fallen on to the pointed end of a cut bamboo, which let air into the cavity of his thorax, into his pleura, with the strangest effect on one lung."
    --O'Brian, The Wine-Dark Sea, 10

    March 11, 2008