fissile
UK: ˈfɪsaɪl | US: ˈfɪsəl
adj. capable of being split or divided
adj. (physics) capable of undergoing nuclear fission
The word fissile originates from Latin fissilis, meaning "easily split." It combines fiss- (from findere, "to cleave") with the adjectival suffix -ile, denoting capability. Initially used in geology to describe minerals that split easily, it later gained prominence in nuclear physics to describe atoms (like uranium-235) that can undergo fission. The logical progression reflects the core idea of "splitting" across disciplines.
Shale is a fissile rock that splits into thin layers.
Uranium-235 is a fissile isotope used in nuclear reactors.
The scientist studied the fissile properties of the new compound.
Fissile materials require careful handling to prevent accidental chain reactions.
The geologist identified the stone as fissile due to its layered structure.