( BrE ) ( NAmE epi·cen·ter ) / ˈepɪsentə(r); NAmE / noun
1.
the point on the earth's surface where the effects of an earthquake are felt most strongly
2.
( formal ) the central point of sth
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WORD ORIGIN
late 19th cent.: from Greek epikentros situated on a centre, from epi upon + kentron centre.