relating to atoms or an atom 原子的；與原子有關的 atomic structure 原子結構
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／動力 the post-war atomic programme 戰後原子計劃
Word Originlate 17th cent.: from modern Latin atomicus, from atomus ‘indivisible’ from Greek atomos, based on a- ‘not’ + temnein ‘to cut’.