裂变产物 lièbiànchǎnwù fission products Origin Definitions Defs Strokes Stroke Words Sentences Sents 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.产物 產物 chǎnwù noun product a physical or tangible object produced by nature or industry