What is the meaning of diffusing?

verb

• Move outward.
  • usage: "The soldiers fanned out"
  • synonyms: diffuse, spread, spread out, fan out
• Spread or diffuse through.
  • usage: "An atmosphere of distrust has permeated this administration"; "music penetrated the entire building"; "His campaign was riddled with accusations and personal attacks"
  • synonyms: permeate, pervade, penetrate, interpenetrate, diffuse, imbue, riddle
• Cause to become widely known.
  • usage: "spread information"; "circulate a rumor"; "broadcast the news"
  • synonyms: circulate, circularize, circularise, distribute, disseminate, propagate, broadcast, spread, diffuse, disperse, pass around

adjective

• Spreading by diffusion.
  • synonyms: diffusive, dispersive, disseminative