1. (v. t.) To pour out and cause to spread; to cause to flow on all sides; to spread; as to diffuse information; to circulate; to disseminate; to scatter.

2. (v. i.) To pass by spreading every way, to diffuse itself.

3. (a.) Poured out; widely spread; not restrained; copious; full; esp., of style, opposed to concise or terse; verbose; prolix; as, a diffuse style; a diffuse writer.