diffuse meaning
EN
[dɪˈfjuːz] [dɪˈfjuz] [-uːz] [dɪˈfjuːs] [dɪˈfjus] [-uːs] 
US US FR diffuse 
- VerbSGdiffusesPRdiffusingPT, PPdiffused
- (transitive) To spread over or through as in air, water, or other matter, especially by fluid motion or passive means.
- (intransitive) To be spread over or through as in air, water, or other matter, especially by fluid motion or passive means.
- Food coloring diffuses in water.
- The riot diffused quite suddenly.
- (transitive) To spread over or through as in air, water, or other matter, especially by fluid motion or passive means.
- AdjectiveCOMmore diffuseSUPmost diffuse
- Everywhere or throughout everything; not focused or concentrated.
- Such a diffuse effort is unlikely to produce good results.
- Everywhere or throughout everything; not focused or concentrated.
- More Examples
- Used in the Middle of Sentence
- On Oil red O staining, there was marked diffuse increase in lipid deposition in a microsteatotic pattern (Fig 1a and 1b).
- In a handful of patients (5 out of 255) abnormal results were obtained and explained by coexisting diffuse or central tapetoretinal degeneration.
- More to the point: In Hollywood techspeak, a “gobo” (one b) is a small disc placed directly between a key light and the actor being illuminated, so as to diffuse the glare.
- Used in the Middle of Sentence
Definition of diffuse in English Dictionary
- Part-of-Speech Hierarchy
- Adjectives
- Verbs
- Intransitive verbs
- Transitive verbs
- Intransitive verbs
- Adjectives
Source: Wiktionary
Grammatically, this word "diffuse" is an adjective. It's also a verb, more specifically, an intransitive verb and a transitive verb.