Moment of inertia, also called mass moment of inertia or the angular mass, (SI units kg·m 2) is a measure of an object's resistance to changes in its rotation rate.
http://en.wikipedia.org/wiki/Moment_of_inertia
Moment of Inertia. Moment of inertia is the name given to rotational inertia, the rotational analog of mass for linear motion. It appears in the relationships for the dynamics of ...
http://hyperphysics.phy-astr.gsu.edu/hbase/mi.html
The following is a list of moments of inertia. Mass moments of inertia have units of dimension mass × length 2. It is the rotational analogue to mass.
http://en.wikipedia.org/wiki/List_of_moments_of_inertia
The Area Moment Of Inertia of a beams cross-sectional area measures the beams ability to resist bending. The larger the Moment of Inertia the less the beam will bend.
http://www.efunda.com/math/areas/MomentOfInertia.cfm