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radioactivity

/rey-dee-oh-ak-tiv-i-tee/US // ˌreɪ di oʊ ækˈtɪv ɪ ti //UK // (ˌreɪdɪəʊækˈtɪvɪtɪ) //

辐射性,放射性,放射性活动,辐射率

Related Words

Definitions

n.名词 noun
  1. 1

    Physics, Chemistry.

    • : the phenomenon, exhibited by and being a property of certain elements, of spontaneously emitting radiation resulting from changes in the nuclei of atoms of the element.

Synonyms & Antonyms

Examples

  • The researchers did not report any evidence of radioactivity within the quasicrystal itself, Conover says.

  • These fears were addressed instead by films that tickled the imagination, with giant insects transformed by radioactivity.

  • Although radioactivity was discovered in 1896, that energy long remained an untapped resource.

  • This would allow an estimate of the energy still left in the Martian core from a combination of its formation and radioactivity, a key element in understanding what geological activity might still be possible there.

  • “It is probably the purest environment in terms of radioactivity on Earth,” says Gioacchino Ranucci, a Borexino member.

  • Speculation: The scorch might have been made by radioactivity attendant upon the resurrection.

  • This new virus strain was accidentally produced in the course of some experiments with radioactivity.

  • Twenty minutes after the irradiation period, the radioactivity of the calcium standards is measured by the same instrument.

  • Later on, radioactivity from silver (silver-110m) can be measured using a longer counting time.

  • Since the atomic wars, the increased radioactivity of the earth undoubtedly stimulates mitosis of the malignant cells.

  • Traces of natural radioactivity can be found, in fact, in all substances on earth.