  The multipole vortical, toroidal, and compression modes are analyzed.
Following the vorticity concept of Ravenhall and Wambach, the vortical operator
is derived and related in a simple way to the toroidal and compression
operators. The strength functions and velocity fields of the modes are analyzed
in $^{208}$Pb within the random-phase-approximation using the Skyrme force
SLy6. Both convection and magnetization nuclear currents are taken into
account. It is shown that the isoscalar (isovector) vortical and toroidal modes
are dominated by the convection (magnetization) nuclear current while the
compression mode is fully convective. The relation between the above concept of
the vorticity to the hydrodynamical vorticity is briefly discussed.
