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1910 E. Rutherford in Nature 6 Oct. 430/2 This matter was left for the consideration of the standards committee; the latter suggested that the name Curie should be used as a new unit to express the quantity or mass of radium emanation in equilibrium with one gram of radium (element). For example, the amount of emanation in equilibrium with one milligram of radium would be called 1/1000 Curie or one millicurie.

1947 Sci. News 4 126 One millicurie of radium expels thirty million alpha particles per second.

1963 H. G. Jerrard & D. B. McNeill Dict. Sci. Units 37 The curie is too large for normal laboratory work where the radioactivity is generally of the order of millicuries.

1987 H. C. Palfrey & P. Molsley in A. J. Turner & H. S. Bachelard Neurochem. vi. 171 Millicurie quantities of the isotope are used.