circularizing

verb
  1. 1

    To publicize something by publishing and distributing circulars.

  2. 2

    To distribute a circular or circulars to.

  3. 3

    To canvass opinion by using a questionnaire.

  4. 4

    To make (something) circular in shape.

Source: https://en.wiktionary.org/wiki/circularize, https://en.wiktionary.org/wiki/circularizing