radioisotopes

IPA/ˌreɪ.di.əʊˈaɪ.sə.təʊp/
IPA/ˌreɪ.di.oʊˈaɪ.sə.toʊp/

radioisotopes — 名詞

  • radioisotopessingular
  • radioisotopesesplural

1. a type of atom of a chemical element that is unstable and naturally releases ene

1.名詞C1
釋義

放射性同位素

會自發衰變並釋放輻射的化學元素原子

a type of atom of a chemical element that is unstable and naturally releases energy as radiation

例句

Doctors used radioisotopes to find the tumour growing in Ada's left lung.

醫生使用放射性同位素來找出Ada左肺中生長的腫瘤。

plural form: radioisotopes used in medical imaging

Hari's team tracked the radioisotope as it moved through the soil layer.

Hari的團隊追蹤放射性同位素在土壤層中的移動情況。

常見搭配
  • inject a radioisotope
  • trace radioisotopes
  • radioisotope decays
  • radioisotope levels
  • handle radioisotopes safely
同義詞
  • radioactive isotope

    more common in everyday explanations; same meaning but longer

  • radionuclide

    more technical; used mainly in nuclear physics and medical literature

反義詞

用法筆記

Technical term used mainly in chemistry, medicine, and physics. Do not confuse with 'isotope' alone — many isotopes are stable and do not give off radiation.

常見錯誤

The scientist studied the isotope to measure radiation.' (when the isotope was non-radioactive).
The scientist studied the radioisotope to measure radiation.
an ordinary isotope may not emit radiation; only a radioisotope does.

同根字

  • isotope
    名詞C1
  • radioactive
    形容詞B2
  • radionuclide
    名詞C2

常見搭配

名詞搭配

副詞搭配

常用片語

  • inject a radioisotope
  • trace radioisotopes
  • handle radioisotopes safely

介系詞搭配