relating to atoms or an atom 原子的；与原子有关的 atomic structure 原子结构
relating to the energy that is produced when atoms are split; related to weapons that use this energy 原子能的；原子武器的 atomic energy/power 原子能／动力 the post-war atomic programme 战后原子计划
Word Originlate 17th cent.: from modern Latin atomicus, from atomus ‘indivisible’ from Greek atomos, based on a- ‘not’ + temnein ‘to cut’.