Source : Webster's Revised Unabridged Dictionary (1913)

Gyrate \Gy"rate\, a. [L. gyratus made in a circular form, p. p.
   of gyrare.]
   Winding or coiled round; curved into a circle; taking a
   circular course.

Gyrate \Gy"rate\, v. i. [imp. & p. p. {Gyrated}; p. pr. & vb. n.
   {Gyrating}.] [L. gyratus, p. p. of gyrare to gyrate. See
   {Gyre}, n.]
   To revolve round a central point; to move spirally about an
   axis, as a tornado; to revolve.

Source : WordNet®

gyrate
     v 1: to wind or move in a spiral course; "the muscles and nerves
          of his fine drawn body were coiling for action"; "black
          smoke coiling up into the sky"; "the young people
          gyrated on the dance floor" [syn: {spiral}, {coil}]
     2: revolve quickly and repeatedly around one's own axis; "The
        dervishes whirl around and around without getting dizzy"
        [syn: {spin}, {spin around}, {whirl}, {reel}]