There are 2 definitions of curie in English:


Line breaks: curie
Pronunciation: /ˈkjʊəri
(abbreviation: Ci)

noun (plural curies)

1A unit of radioactivity, corresponding to 3.7 × 1010 disintegrations per second.
More example sentences
  • The activity (rate of decay) of Rn is expressed in units called curies.
  • The sediment around its shores blew 5 million curies of radioactive dust over 25,000 square kilometres, irradiating 500,000 people.
  • In 1957, there was an explosion at a waste storage facility that blew 2 million curies of radiation into the atmosphere.
1.1The quantity of radioactive substance that emits one curie of activity: a curie of any radioactive element disintegrates at the same rate as 1 gram of natural radium
More example sentences
  • Each generator contains up to 40,000 curies of highly radioactive material.
  • During that time I used to handle vials with over 5 curies (which is about 100 times more than what you inquire about) of this radioactive substance on almost daily basis.
  • The new tenants discovered an old irradiator containing 19 curies of cobalt-60.


early 20th century: named after Pierre and Marie Curie.

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Pronunciation: kənˈspɪkjʊəs
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There are 2 definitions of curie in English:


Line breaks: Curie
Pronunciation: /ˈkjʊəri
Marie ( 1867–1934), Polish-born French physicist, and Pierre ( 1859–1906), French physicist, pioneers of radioactivity. Working together on the mineral pitchblende, they discovered the elements polonium and radium, for which they shared the 1903 Nobel Prize for Physics with A.-H. Becquerel. After her husband’s accidental death Marie received another Nobel Prize (for chemistry) in 1911 for her isolation of radium. She died of leukaemia, caused by prolonged exposure to radioactive materials.

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