noun🔗Share방사능Spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus."The old watch contained radium, which caused its hands to glow in the dark due to radioactivity. "오래된 시계에는 라듐이 들어 있었고, 이는 방사능 때문에 어둠 속에서 바늘이 빛나게 했습니다.physicsenergysubstancechemistryenvironmentsciencematerialChat with AIVocabulary GamePractice Reading
noun🔗Share방사능, 방사선The radiation so emitted; including gamma rays, alpha particles, neutrons, electrons, positrons, etc."The radioactivity from the old smoke detector is dangerous and should be disposed of properly. "오래된 연기 감지기의 방사능은 위험하므로 적절하게 폐기해야 합니다.physicsenergysubstancescienceChat with AIVocabulary GamePractice Reading
