n. 1 a unit of radioactivity, corresponding to 3.7 x 10(10) disintegrations per second. °Abbr.: Ci. 2 a quantity of radioactive substance having this activity.
[ P. Curie, Fr. scientist d. 1906 ]
n. 1 a unit of radioactivity, corresponding to 3.7 x 10(10) disintegrations per second. °Abbr.: Ci. 2 a quantity of radioactive substance having this activity.
[ P. Curie, Fr. scientist d. 1906 ]
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012