Synonym: radiation. Similar words: radioactive, activity, inactivity, objectivity, productivity, connectivity, conductivity, collectivity. Meaning: ['reɪdɪəʊək'tɪvətɪ] 
n. the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay.
n. the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay. 
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121. This example illustrates the great sensitivity of the radioactivity method.
122. Ernest Rutherford and Frederick Soddy were working out the nature of radioactivity.
123. In the measurement of low-level radioactivity, instead of Poisson distribution, a negative binomial distribution is proposed to denote the probability distribution of actual counts.
124. Conclusion It was succeed keys to treat and nurse of esophagitis of radioactivity.
125. The average outdoor radon level varies between 5 and 15 Bq/m3 [Radon radioactivity is measured in Becquerel (Bq).
126. Radioactivity came to light a century after the discovery of uranium when Henri Becquerel used uranium salts and photographic plates in the same experiment and found that one fogged the other.
127. Also be not of course say: Since radioactivity exists generally, harm degree does not have exact mensurable final conclusion,(sentencedict .com) still talk about problem of stone material radioactivity to do what?
128. In practice it would be possible to measure radioactivity one thousand fold less than this.
129. The atomic bomb is characterized by the grave injuries caused by radioactivity.
130. Radioactivity such as that of strontium 90 causes health problems in people even at low levels.
131. Article 33 It is prohibited to discharge into the sea such wastes as oils, acid liquids, alkaline liquids, hypertoxic waste liquids and waste water with high or medium radioactivity.
132. RESULTS:1)The curable duration varied with radioactivity in quadratic polynomial mode, and decreased with the increase of the tumor size.
More similar words: radioactive, activity, inactivity, objectivity, productivity, connectivity, conductivity, collectivity, proactive, festivity, creativity, retroactive, sensitivity, activist, retroactively, judicial activism, radio wave, radio telescope, declivity, proclivity, aggressivity, contradiction, active, actively, inactive, activate, reactive, attractive, deactivate, reactivate.