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(at′mŏs-fēr″) [Gr. atmos, vapor + sphere]
1. The gases surrounding the earth.
2. Climatic condition of a locality.
3. In physics, the pressure of the air on the earth at mean sea level, approx. 14.7 lb/sq in (101,325 pascals or 760 torr).
4. In chemistry, any gaseous medium around a body. atmospheric (at″mŏs-fēr′ik), adjective

standard atmosphere

The pressure of air at sea level when the temperature is 0°C (32°F). This is equal to 14.7 lb/sq in., or 760 torr, or 101,325 pascals.
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References in periodicals archive ?
Unlike the novelist, the romance writer (as announced in his preface to The House of the Seven Gables) "may so manage his atmospherical medium as to bring out or mellow the lights and deepen and enrich the shadows of the picture."
From these Arctic expeditions (and from their narratives) Barrow expected to glean much valuable information, and improvement in the hydrography and the geography of the arctic regions; as well as many important and interesting observations on the atmospherical, magnetical, and electrical phenomena, ...
(7) Joseph Priestley, Experiments and Observations Relating to the Analysis of Atmospherical Air (Philadelphia, 1796), pp.
An amiable young woman, daughter of a respectable merchant in Canal Street, while witnessing the atmospherical phenomenon, swooned, and was carried to her chamber.
The Victorian social reformer Henry Mayhew, noticing that he could write with his finger in the dust accumulated on the surface of his furniture, and remarking that 'in every twenty-four hours an adult breathes thirty-six hogsheads of air', wondered how he could ascertain the 'deleteriousness to health' caused by the inhalation of 'atmospherical granite, dung, and refuse dust'.
In Chattanooga, Waccamaw's 2,000-square-foot rug department carries small atmospherical displays as well as no-nonsense racks and stacks.