Search results
- Dictionaryradioactive/ˌreɪdɪəʊˈaktɪv/
adjective
- 1. emitting or relating to the emission of ionizing radiation or particles: "radioactive decay"
Powered by Oxford Dictionaries
having or producing powerful and dangerous energy that comes from the breaking up of atoms: Uranium is a radioactive material. radioactive waste. considered extremely dangerous or harmful: The deputies of great dictators often become radioactive by association. Why is this such a radioactive topic?
Jun 21, 2024 · radioactivity, property exhibited by certain types of matter of emitting energy and subatomic particles spontaneously. It is, in essence, an attribute of individual atomic nuclei.
The meaning of RADIOACTIVE is of, caused by, or exhibiting radioactivity. How to use radioactive in a sentence.
When an object gives off a certain kind of energy, like the sun or an x-ray machine, it can be described as radioactive. The adjective radioactive is a scientific term for a particular type of energy-emitting substance or thing.
What does radioactive mean? Radioactive describes something that exhibits or is caused by radioactivity . If something is radioactive , it emits radiation , which usually takes the form of electromagnetic waves or fast-moving elementary particles , such as protons or neutrons .
having or producing powerful and dangerous energy that comes from the breaking up of atoms: Uranium is a radioactive material. radioactive waste. considered extremely dangerous or harmful: The deputies of great dictators often become radioactive by association. Why is this such a radioactive topic?
adjective. giving off, or capable of giving off, radiant energy in the form of particles or rays, as alpha, beta, and gamma rays, by the spontaneous disintegration of atomic nuclei. said of certain elements, as plutonium, radium, thorium, and uranium, and their products.
The meaning of RADIOACTIVITY is the property possessed by some elements (such as uranium) or isotopes (such as carbon 14) of spontaneously emitting energetic particles (such as electrons or alpha particles) by the disintegration of their atomic nuclei; also : the rays emitted.
Definition of radioactive adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
RADIOACTIVE definition: containing harmful radiation (= energy from a nuclear reaction): . Learn more.
