Adjective
heterocatalytic (not comparable)
(chemistry) Relating to heterocatalysis
However, in 1951 Teller and Ulam made a breakthrough, and invented a new design, proposed in a classified March 1951 paper, On Heterocatalytic Detonations I: Hydrodynamic Lenses and Radiation Mirrors, for a practical megaton-range H-bomb. Source: Internet