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单词 radiopure
释义

radiopureadj.

Brit. /ˌreɪdɪəʊˈpjʊə/, /ˌreɪdɪəʊˈpjɔː/, U.S. /ˌreɪdioʊˈpjʊ(ə)r/
Origin: Formed within English, by compounding. Etymons: radio- comb. form2, pure adj.
Etymology: < radio- comb. form2 + pure adj., after radiochemically pure adj. at radiochemically adv.
Science.
= radiochemically pure adj. at radiochemically adv.
ΚΠ
1947 Jrnl. Amer. Chem. Soc. 69 2778/1 After several months the activities, other than Y, had all decayed leaving radio-pure Y91.
1958 Jrnl. Biophysical & Biochem. Cytol. 4 843/1 10 microcuries of radio-pure tritiated thymidine.
2005 Nucl. Instruments & Methods Physics Res. A. 551 246/1 Experiments deeply underground..and the use of radiopure materials cannot suppress a background counting rate below about 1 event keV−1 kg−1 day−1.
This is a new entry (OED Third Edition, June 2008; most recently modified version published online March 2022).
<
adj.1947
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