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