\E`qui*mo*men"tal\, a. [Equi- + momental.] (Mech.)
Having equal moments of inertia.
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.
{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.