stimulation

/S T IH0 M Y AH0 L EY1 SH AH0 N/
noun
  1. 1

    A pushing or goading toward action.

  2. 2

    An activity causing excitement or pleasure; the act of stimulating.

  3. 3

    Any action or condition that creates a response; sensory input.

Source: https://en.wiktionary.org/wiki/stimulation