cyclotomy

/S IH0 K L AO1 T AH0 M IY0/
noun
  1. 1

    (mathematics) the historical problems of dividing the circle into a given number of equal segments, and of constructing regular polygons

  2. 2

    (mathematics) the analytical extraction of the complex roots of unity; a de Moivre number

  3. 3

    (medicine) surgical removal of the ciliary muscle