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单词 radioactive
释义
radioactive
adjective
uk
/ˌreɪ.di.əʊˈæk.tɪv/us
/ˌreɪ.di.oʊˈæk.tɪv/
having orproducingpowerfulanddangerousenergythat comes from thebreakingup ofatoms:
Uranium is a radioactivematerial.铀是一种放射性物质。
radioactivewaste放射性废料
consideredextremelydangerousorharmful:
Thedeputiesofgreatdictatorsoftenbecomeradioactive byassociation.
Why is this such a radioactivetopic?
Theissueofraceis radioactive for thisadministration.
More examples
  • Allmailto thenewsroomistestedfor radioactive andchemicalsubstances.
  • Thewasteconsists ofhighlyradioactive usedfuelrodsfrompowerreactors.
  • Hypocrisy is such a radioactivesubjectinpoliticsthat it's verydifficulttodefendapublicfigureandgainempathy.
SMART Vocabulary: related words and phrases
Physics: radiation & radioactivity
  • alpha particle
  • background radiation
  • decay
  • gamma radiation
  • gamma ray
  • half-life
  • irradiated
  • irradiation
  • luminosity
  • non-ionizing
  • non-irradiated
  • radiation
  • radioactivity
  • radioisotope
  • sievert
  • spectrometer
  • tritium
  • UVA
  • UVB
  • weak force
See more results »

You can also find related words, phrases, and synonyms in the topics:

Dangerous and harmful
(Definition ofradioactivefrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)
radioactive
adjective
uk
/ˌreɪ.di.əʊˈæk.tɪv/us
/ˌreɪ.di.oʊˈæk.tɪv/
having orproducingtheenergythat comes from thebreakingup ofatoms
具有放射性的；有辐射性的
Uranium is a radioactivematerial.铀是一种放射性物质。
radioactivewaste放射性废料

radioactive| American Dictionary

radioactive
adjective
us
/ˌreɪ·di·oʊˈæk·tɪv/
physics
possessingorproducingenergyfrom thebreakingup ofatoms, orresultingfrom theproductionof suchenergy:
radioactivewaste

radioactivity

noun[U]us
/ˌreɪ·diˌoʊ·ækˈtɪv·ɪ·t̬i/
(Definition ofradioactivefrom theCambridge Academic Content Dictionary© Cambridge University Press)

Examplesofradioactive

radioactive
An aliquot was removed to determine the uptake of theradioactiveprecursor.
From theCambridge English Corpus
This was used as the starting material for the selectiveradioactiveamplification.
From theCambridge English Corpus
Production ofradioactivenuclides by energetic protons generated from intense laser-plasma interactions.
From theCambridge English Corpus
By the technique ofradioactivedating, it has been shown that the chondrites all crystallized 4.6r 109 years ago.
From theCambridge English Corpus
Blanks of noradioactiveslides were also run.
From theCambridge English Corpus
In either case the toxic orradioactivewaste is trapped in the solid, preventing it from leaching into the local water table.
From theCambridge English Corpus
The amplified products are visualized on sequencing polyacrylamide gels usingradioactivelabelling, silver-staining technique, or by using fluorescence-based capillary electrophoresis.
From theCambridge English Corpus
Mutagenicity tests on bacterial cultures using exceptionallyradioactiveheavy mineral beach sands : irradiation or chemistry?
From theCambridge English Corpus
Such preparations are metabolically active as shown by then* ability to metabolizeradioactiveglucose.
From theCambridge English Corpus
In recent years, regulatory problems associated with the use ofradioactivematerials have limited their use in field studies.
From theCambridge English Corpus
Inradioactivebeam generation experiments, resolution of the isotopes and transmission of the secondary beam through the fragment separator are very important problems.
From theCambridge English Corpus
It is expected that the latter can regulate the crossfield plasma particle transport in tokamak discharges which are contaminated byradioactivedust.
From theCambridge English Corpus
This is the core of a new technology developed to treat buried low-levelradioactiveor toxic waste.
From theCambridge English Corpus
Erosion of the granites yields specific minerals including quartz,radioactive(uranium-, thorium-bearing) phases and phosphates, which could play a role in early evolution.
From theCambridge English Corpus
Examples of hazardous systems include those used in the production, storage, and transportation of environmentally harmful materials, such as oil orradioactivewaste.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/radioactive##
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更新时间：2024/12/28 3:10:09