-üs]iv, -üz], ]ēv also ]əv adjective
1. : having the quality of diffusing : tending to diffuse : characterized by diffusion
2. obsolete , of a people or group : acting as a mass of individuals having authority diffused throughout the entire membership
• dif·fu·sive·ly ]ə̇vlē, -li adverb
• dif·fu·sive·ness ]ivnə̇s, ]ēv-\ noun -es