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Medical Dictionary


adj se·nile \ˈsēn-ˌīl also ˈsen-\

Medical Definition of SENILE

:  of, relating to, exhibiting, or characteristic of old age <senile weakness>; especially :  exhibiting a loss of mental faculties associated with old age
:  being a cell that cannot undergo mitosis and is in the stage of declining functional capacities prior to the time of death <senile red blood cells>
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