Daily Almanac for
Nov 30, 2009
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aor'tic steno'sis



Pathol.
abnormal narrowing of the aorta, esp. of its orifice, usually as a result of rheumatic fever or embryologic anomalies.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

aortic insufficiencyaortic valve
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