emanation

[em-uh-ney-shuhn]

noun

1. an act or instance of emanating.

2. something that emanates or is emanated.

3. Physical Chemistry.,  a gaseous product of radioactive disintegration, including radon, thoron, and actinon. Em

emanation

/ ˌɛməˈneɪʃən /

noun

1. an act or instance of emanating

2. something that emanates or is produced; effusion

3. a gaseous product of radioactive decay, such as radon

Other Word Forms

• emanational adjective

Word History and Origins

Origin of emanation¹

1560–70; < Late Latin ēmānātiōn- (stem of ēmānātiō ), equivalent to ēmānāt ( us ) ( emanate ) + -iōn- -ion