fissile materials
Defined in 1 place of the United States Code.
The term “fissile materials” means plutonium, highly-enriched uranium, or other material capable of sustaining an explosive nuclear chain reaction, including irradiated items containing such materials if the radiation field from such items is not sufficient to prevent the theft or misuse of such items.
Source
- 2004–present50 U.S.C. § 2569War and National Defense · Acceleration of removal or security of fissile materials, radiological materials, and related equipment at vulnerable sites worldwide · in this section