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fi·bro·elas·to·sis | \ -ˌlas-ˈtō-səs 
\
\ plural fibroelastoses\ -ˌsēz \
\Medical Definition of fibroelastosis
: a condition of the body or one of its organs (as the left ventricle of the heart) characterized by proliferation of fibroelastic tissue — see endocardial fibroelastosis
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