Protodiastolic gallop
protodiastolic gallop n.
A gallop rhythm in which an abnormal third heart sound occurs in early diastole.
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adjective 1. of or relating to architecture, as in certain Egyptian tombs, supposedly anticipating the Grecian Doric order.
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protoduodenum pro·to·du·o·de·num (prō’tō-dōō’ə-dē’nəm, -dyōō’-, -dōō-ŏd’n-əm, -dyōō-) n. The first part of the duodenum extending from the gastroduodenal pylorus to the major duodenal papilla and containing the duodenal glands.
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noun, Linguistics. 1. a hypothetical linguistic form reconstructed as an element of a protolanguage.
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noun, plural protogalaxies. Astronomy. 1. the large concentration of gas and dust from which a galaxy is formed. noun (pl) -axies 1. a cloud of gas in the early stages of its evolution into a galaxy