radiation

/.reidi'eiʃәn/

柯林斯星级

BNC频率: 3892

现代语料频率: 3652

n. 辐射

[化] 放射

n. energy that is radiated or transmitted in the form of rays or waves or particles

n. the act of spreading outward from a central source

n. the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay

n. the spread of a group of organisms into new habitats

复数形式:radiations

n (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation

plural of absorbance n (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation

(physics) material in a nuclear reactor that absorbs radiation

n a measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance

(physics) the property of a body that determines the fraction of the incident radiation or sound flux absorbed or absorbable by the body

今日更新

更新时间：2025-06-04 12:22:47