可裂变 kělièbiàn fissionable Definitions Defs Origin Strokes Stroke Words Sentences Sents 可 kě adjectiveauxiliary worth worth; worthy of; used as a prefix to mean "-able" or "-worthy"裂变 裂變 lièbiàn nuclear fission (physics) The process where a heavy nucleus splits into two or more smaller nuclei, releasing energy and neutrons.