from
The Collaborative International Dictionary of English v.0.48
Equimomental \E`qui*mo*men"tal\, a. [Equi- + momental.] (Mech.)
Having equal moments of inertia.
[1913 Webster]
Note: Two bodies or systems of bodies are said to be
equimomental when their moments of inertia about all
straight lines are equal each to each.
[1913 Webster]
{Equimomental cone of a given rigid body}, a conical surface
that has any given vertex, and is described by a straight
line which moves in such manner that the moment of inertia
of the given rigid body about the line is in all its
positions the same.
[1913 Webster]