radioactive material
Defined in 1 dictionary — U.S. Code
United States Code
18 U.S.C. § 2283 — in this section (6 versions over time)
The term “radioactive material” means—
(A) source material and special nuclear material, but does not include natural or depleted uranium;
(B) nuclear by-product material;
(C) material made radioactive by bombardment in an accelerator; or
(D) all refined isotopes of radium.