Main Entry: an·eu·rysm

Variant(s): also an·eu·rism \ˈan-yə-ˌriz-əm\

Function: noun

: an abnormal blood-filled dilatation of a blood vessel and especially an artery resulting from disease of the vessel wall

[aneurysm illustration]

—an·eu·rys·mal also an·eu·ris·mal \ˌan-yə-ˈriz-məl\ adjective

—an·eu·rys·mal·ly \-ē\ adverb