Adjective: fissile fi-sul or 'fi,sI(-u)l [N. Amer], 'fi,sI(-u)l [Brit]
- Capable of being split, cleft or divided in the direction of the grain
"fissile crystals"; "fissile wood"
- (physics) capable of undergoing nuclear fission
"a fissile nucleus";
- fissionable
Antonym: nonfissile, nonfissionable
Encyclopedia: Fissile