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myelencephalon
myelin
myelin sheath
myelinated
myelitis
myelo-
myeloblast
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myelofibrosis
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myelogenous leukemia
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myocardial infarction
my·o·car·di·al in·farc·tion (plural my·o·car·di·al in·farc·tions)


noun 
Definition:
 
heart attack: the death of a segment of heart muscle, caused by a blood clot in the coronary artery interrupting blood supply
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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