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diffusion di'fju:ʒәn

TOEFL

释义

n. 散播, 传播, 蔓延
[医] 扩散, 弥散, 漫射(光)

英文释义

n. (physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration
n. the spread of social institutions (and myths and skills) from one society to another

词形变化

复数: diffusions

BNC词频排名: 12,694 | 当代语料库词频排名: 11,051