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atrial Definition

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atrial
noun(atri-um)
the central room of a Roman house
atrial
noun(atri-um)
a rectangular open patio around which a house is built
atrial
noun(atri-um)
a many-storied court in a building (such as a hotel) usually with a skylight
atrial
noun(atri-um)
a peptide hormone secreted by the cardiac atria that in pharmacological doses promotes salt and water excretion and lowers blood pressure —called also atrial natriuretic factor
atrial
idiom(atri-um)
for a short period of time in order to try something out

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