fi·bro·elas·to·sis \ˌfī(ˌ)brōə̇ˌlasˈtōsə̇s, -ēˌlas-\noun Etymology: New Latin, from English fibroelastic + New Latin -osis : a condition of the body or one of its organs (as the left ventricle of the heart) characterized by proliferation of fibroelastic tissue