| 释义 | me·tab·a·sis \məˈtabəsə̇s\ noun
 (plural metaba·ses \-bəˌsēz\)
 Etymology: Greek, from metabainein to change, from meta- + bainein to go, move — more at come
 1.  : a shift from one subject, point, or division in a discourse to another; specifically  : the rhetorical device used to effect such a shift
 2.  : a medical change (as of disease, symptoms, or treatment)
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