Medical Dictionary

inertia

noun in·er·tia \in-ˈər-shə, -shē-ə\

Medical Definition of INERTIA

1
a :  a property of matter by which it remains at rest or in uniform motion in the same straight line unless acted upon by some external force b :  an analogous property of other physical quantities (as electricity)
2
:  lack of activity or movement—used especially of the uterus in labor when its contractions are weak or irregular

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