##  [Mass Moment of Inertia](/mass-moment-inertia) 

  ##  [Mass Moment of Inertia](https://engineering.quantumdictionary.io/mass-moment-inertia-0) 

  

 [![Engineering & Applied Technologies Dictionary](/sites/default/files/styles/large/public/2026-01/Engineering%20%26%20Applied%20Technologies.png.webp?itok=_IKO7_-n)](/topic-specific-dictionaries/engineering-applied-technologies)



**Engineering & Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A scalar or tensor quantity that measures a body's resistance to angular acceleration about a specified axis or set of axes; for a rigid body it equals the integral (or discrete sum) of mass elements times the square of their perpendicular distance to the rotation axis and depends on the chosen reference point and coordinate system.