Longman Dictionary of Contemporary English homepage

Date: 1400-1500
Language: Latin
Origin: diffusus; DIFFUSE1

diffuse

2 adjective
     
dif‧fuse2
1 spread over a large area:
The organization is large and diffuse.
2 using a lot of words and not explaining things clearly and directly:
His writing is diffuse and difficult to understand.
diffuseness noun [uncountable]

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