1 Increasing thoracic volume results in decreased pleural pressure, increased alveolar volume, decreased alveolar pressure, and air movement into the lungs.  Decreasing thoracic volume results in increased pleural pressure, decreased alveolar volume, increased alveolar pressure, and air movement out of the lungs.
Freebase(5.00 / 1 vote)Rate this definition: Orchard. An orchard is an intentional planting of trees or shrubs that is maintained for food production. Orchards comprise fruit or nut-producing trees which are grown for commercial production. Orchards are also sometimes a feature of large gardens, where they serve an aesthetic as well as a productive purpose.
Meaning: Garden consisting of a small cultivated wood without undergrowth. Classified under: Nouns denoting man-made objects. Synonyms: orchard; woodlet; grove; plantation. Hypernyms (grove is a kind of...): garden (a plot of ground where plants are cultivated) Hyponyms (each of the following is a kind of grove): apple orchard (a grove of apple trees)