Dictionary definition · diffuse
verb
- move outward"The soldiers fanned out"
- spread or diffuse through"An atmosphere of distrust has permeated this administration"
- cause to become widely known"spread information"
adjective
- spread out; not concentrated in one place"a large diffuse organization"
- (of light) transmitted from a broad light source or reflected
- lacking conciseness"a diffuse historical novel"
Source: Open English WordNet (CC BY 4.0).