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• curie
  curie

  noun

  a unit of activity of radioactive substances equivalent to 3.70 × 10 10 disintegrations per second: it is approximately the amount of activity produced by 1 gram of radium-226. Ci
• Curie
  Curie

  noun

  Irène Joliot-Curie, Irène.

curie

¹ American  

[kyoor-ee, kyoo-ree] / ˈkyʊər i, kyʊˈri /

noun

Physics, Chemistry.

1. a unit of activity of radioactive substances equivalent to 3.70 × 10 10 disintegrations per second: it is approximately the amount of activity produced by 1 gram of radium-226. Ci

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Curie ² American  

[kyoor-ee, kyoo-ree, ky-ree] / ˈkyʊər i, kyʊˈri, küˈri /

noun

1. Irène Joliot-Curie, Irène.

2. Marie 1867–1934, Polish physicist and chemist in France: codiscoverer of radium 1898; Nobel Prize in Physics 1903, for chemistry 1911.

3. her husband Pierre 1859–1906, French physicist and chemist: codiscoverer of radium; Nobel Prize in Physics 1903.

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Curie ¹ British  

/ -riː, kyri, ˈkjʊərɪ /

noun

1. Marie (mari). 1867–1934, French physicist and chemist, born in Poland: discovered with her husband Pierre the radioactivity of thorium, and discovered and isolated radium and polonium. She shared a Nobel prize for physics (1903) with her husband and Henri Becquerel, and was awarded a Nobel prize for chemistry (1911)

2. her husband, Pierre (pjɛr). 1859–1906, French physicist and chemist

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curie ² British  

/ ˈkjʊərɪ, -riː /

noun

1.  Ci.  a unit of radioactivity that is equal to 3.7 × 10 ¹⁰ disintegrations per second

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Curie ¹ Scientific  

1. Polish-born French chemist who pioneered research into radioactivity. Following Antoine Henri Becquerel's discovery of radioactivity, she investigated uranium with her husband, Pierre Curie (1859–1906). Together they discovered the elements radium and polonium. Marie Curie later isolated pure radium and developed the use of radioactivity in medicine.

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curie ² Scientific  

/ kyr′ē,ky-rē′ /

1. A unit used to measure the rate of radioactive decay. Radioactive decay is measured by the rate at which the atoms making up a radioactive substance are transformed into different atoms. One curie is equal to 37 billion (3.7 × 10 ¹⁰) of these transformations per second. Many scientists now measure radioactive decay in becquerels rather than curies.

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Etymology

Origin of curie

First recorded in 1910; named in memory of Pierre Curie