noun (n)

• the process of permeating or infusing something with a substance

  proses permeating atau infusing sesuatu dengan zat

  Synonym:
  permeation, suffusion
  

  source: wordnet30
• The act of pervading, passing, or spreading through the whole extent of a thing.

  tindakan pervading, lewat, atau menyebarkan melalui seluruh keluasan hal.

  source: webster1913