valvular in-competence

valvular insufficiency

noun Pathology.
abnormal closure of a heart valve resulting in failure to prevent regurgitation of blood.
Also called valvular incompetence.
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American Heritage
Medical Dictionary

valvular insufficiency n.
Failure of the cardiac valves to close perfectly, thus allowing regurgitation of blood past the closed valve.

The American Heritage® Stedman's Medical Dictionary
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