a. [a. Gr. type στροβικ-ός, f. στρόβ-ος a twisting or whirling round: see -IC.] That has a spinning motion. Strobic circles: sets of concentric circles, toothed wheels, and the like, which appear to revolve when the surface on which they are inscribed is moved about.
1880. S. P. Thompson, in Brain, III. 293. If two such ‘strobic circles’ (as I have called them) are printed side by side.
