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megacurie
megacurie n. 
/ˈmɛɡəˌkjɔːri/,
Brit. /ˈmɛɡəˌkjʊəri/
, /ˈmɛɡəˌkjʊəri//ˈmɛɡəˌkjɔːri/U.S. /ˈmɛɡəˌkjʊri/
/ˈmɛɡəˌkjʊri/ΘΚΠ
the world > matter > physics > atomic nucleus > measurement of ionizing radiation > [noun] > units of radioactivity
megacurie1947
curie1954
pico-curie1960
Becquerel1975
Bq1975
1947 Radiology 49 326/1 The amount of radioactivity from these fission products with moderately long half-lives was in the range of hundreds of megacuries.
1957 New Scientist 10 Oct. 28/3 Large amounts of radioactivity can be measured in megacuries: one megacurie is the equivalent of one [metric] ton of radium.
1984 N. N. Greenwood & A. Earnshaw Chem. of Elements (1986) iii. 48 Tritium is available cheaply on the megacurie scale for peaceful purposes.
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