详细解释:n. 散播, 传播, 蔓延
【医】 扩散, 弥散, 漫射(光)
词型变化：
形容词:diffusional英语解释：
名词 diffusion:
(physics) the process of diffusing; the intermingling of molecules in gases and liquids as a result of random thermal agitationthe spread of social institutions (and myths and skills) from one society to anotherthe property of being diffused or dispersed同义词：dissemination