| gaseous mediastinography | Radiography of the mediastinum after injection of air (artificial pneumomediastinum), an obsolete procedure. (05 Mar 2000) |
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| mediastinography | Radiography of the mediastinum. Origin: mediastinum + G. Grapho, to write (05 Mar 2000) |
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| gaseous | Of the nature of gas. (05 Mar 2000) |
| gaseous pulse | A soft, full, but feeble pulse. (05 Mar 2000) |