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Spontaneous expulsion of the products of pregnancy before the middle of the second trimester. SYN: spontaneous abortion.
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mis·car·riage mis-'kar-ij n spontaneous expulsion of a human fetus before it is viable and esp. between the 12th and 28th weeks of gestation compare ABORTION (1a)
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n.
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mis·car·riage (misґkar-əj) popular term for spontaneous abortion.Medical dictionary. 2011.