**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.

© Webster 1913.