A pericardial vein is any vein that drains blood from the area around the heart, specifically the pericardium, and typically empties into the azygos or brachiocephalic veins. It helps in the circulation of blood around the heart tissues. The pericardium is the double-walled sac containing the heart and the roots of the great vessels.
Baroscope
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Any instrument showing the changes in the weight of theatmosphere; also, less appropriately, any instrument that indicates -or foreshadows changes of the weather, as a deep vial of liquidholding in suspension some substance which rises and falls withatmospheric changes.
Baroscope meaning & definition 1 of Baroscope.
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I don't agree. https://google.com says something else
Baroscope meaning & definition 2 of Baroscope.
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