a. [Cf. prec. and -ULAR.] Of motion: Vortical, vorticose.
1838. Redfield, in Amer. Jrnl. Sci., XXXIII. 59. Were there no vorticular or whirling action already excited, there could then be no inequality of pressure to produce rotation.
1864. De Penning, Meteorol., 65. This inward vorticular movement can only arise from the constant lateral pressure that is always maintained towards the partial vacuum of the vortex.
1891. Atlantic Monthly, LXVIII. 68/2. They [sc. tornadoes] possess truly vorticular motion.