—adj.
1 (of light, inflammation, etc.) spread out, diffused, not concentrated.
2 (of prose, speech, etc.) not concise, long-winded, verbose.
—v.tr. & intr.
1 disperse or be dispersed from a centre.
2 spread or be spread widely; reach a large area.
3 Physics (esp. of fluids) intermingle by diffusion.
Derivatives:
diffusely adv. diffuseness n. diffusible adj. diffusive adj.
Etymology: ME f. F diffus or L diffusus extensive (as DIS-, fusus past part. of fundere pour)
Useful english dictionary. 2012.