擴散

to spread / to proliferate / to diffuse / spread / proliferation / diffusion

to spread; to proliferate; to diffuse

to enlarge

variant of 散[san4]

scattered / loose / to come loose / to fall apart / leisurely / powdered medicine

to scatter / to break up (a meeting etc) / to disperse / to disseminate / to dispel / (coll.) to sack

nuclear proliferation

nuclear nonproliferation

Treaty on the Non-Proliferation of Nuclear Weapons

gaseous diffusion

to let everyone know / spread the word!