fertile

in radioanalytical chemistry
https://doi.org/10.1351/goldbook.F02350
  1. Of a nuclide, capable of being transformed, directly or indirectly, into a fissile nuclide by neutron capture
  2. Of a material: containing one or more fertile nuclides.
Source:
PAC, 1982, 54, 1533. (Glossary of terms used in nuclear analytical chemistry (Provisional)) on page 1542 [Terms] [Paper]