Meaning of DIFFUSE in English

I. di-ˈfyüs adjective

Etymology: Middle English, from Latin diffusus, past participle of diffundere to spread out, from dis- + fundere to pour — more at found

Date: 15th century

1. : being at once verbose and ill-organized

2. : not concentrated or localized

diffuse sclerosis

diffuse lighting

Synonyms: see wordy

• dif·fuse·ly adverb

• dif·fuse·ness noun

II. di-ˈfyüz verb

( dif·fused ; dif·fus·ing )

Etymology: Middle English diffused, past participle, from Latin diffusus, past participle

Date: 14th century

transitive verb


a. : to pour out and permit or cause to spread freely

b. : extend , scatter

c. : to spread thinly or wastefully

2. : to subject to diffusion ; especially : to break up and distribute (incident light) by reflection

intransitive verb

1. : to spread out or become transmitted especially by contact

2. : to undergo diffusion

• dif·fus·ible di-ˈfyü-zə-bəl adjective

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.