adj. & v.
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. diffusely adv. diffuseness n. diffusible adj. diffusive adj.
[ ME f. F diffus or L diffusus extensive (as DIS-, fusus past part. of fundere pour) ]