Becquerel

Bec·que·rel

B0147150 (bĕ-krĕl′, bĕk′ə-rĕl′) Family of French physicists, including Antoine César (1788-1878), a pioneer in electrochemistry; his son Alexandre Edmond (1820-1891), noted for his research on phosphorescence and spectroscopy; and his grandson Antoine Henri (1852-1908), who shared a 1903 Nobel Prize for his discovery of the radioactive properties of uranium.

bec·que·rel

B0147150 (bĕ-krĕl′, bĕk′ə-rĕl′)n. Abbr. Bq The International System unit of radioactivity, equal to one nuclear decay or other nuclear transformation per second.

[After Antoine Henri Becquerel.]

Becquerel

(French bɛkrɛl) n (Biography) Antoine Henri (ɑ̃twan ɑ̃ri). 1852–1908, French physicist, who discovered the photographic action of the rays emitted by uranium salts and so instigated the study of radioactivity: Nobel prize for physics 1903

becquerel

(ˌbɛkəˈrɛl) n (Units) the derived SI unit of radioactivity equal to one disintegration per second. Symbol: Bq [C20: named after Antoine Henri Becquerel]

Bec•que•rel

(ˌbɛk əˈrɛl)

n. 1. Alexandre Edmond, 1820–91, French physicist (son of Antoine César). 2. Antoine César, 1788–1878, French physicist. 3. Antoine Henri, 1852–1908, French physicist (son of Alexandre Edmond).

bec·que·rel

(bĕ-krĕl′, bĕk′ə-rĕl′) 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 becquerel is equal to one of these atomic transformations per second.

Bec·que·rel

(bĕ-krĕl′, bĕk′ə-rĕl′) Family of French physicists, including Antoine César (1788-1878), one of the first investigators of electrochemistry; his son Alexandre Edmond (1820-1891), noted for his research on phosphorescence; and his grandson Antoine Henri (1852-1908), who discovered spontaneous radioactivity in uranium.

Thesaurus

Noun

Becquerel - French physicist who discovered that rays emitted by uranium salts affect photographic plates (1852-1908)Antoine Henri Becquerel, Henri Becquerel

Translations

becquerel

Becquerel

(bĕkərĕl`), family of French physicists. Antoine César Becquerel, 1788–1878, was a pioneer in electrochemical science. He was professor of physics at the Muséum d'Histoire naturelle from 1838 until his death. Becquerel made a special study of the voltaic cell, telegraphy, and magnetism and wrote several books on these subjects. His second son, Alexandre Edmond Becquerel, 1820–91, succeeded his father, in 1878, as professor at the Muséum d'Histoire naturelle. Known for his studies in light, photochemistry, and phosphorescence (for which he invented the phosphoroscope), Alexandre wrote La Lumière, ses causes et ses effets (1867–68). His son, Antoine Henri Becquerel, 1852–1908, was professor at the École polytechnique, Paris, from 1895. He studied atmospheric polarization and the influence of the earth's magnetism on the atmosphere. In 1896 he discovered radioactivityradioactivity,
spontaneous disintegration or decay of the nucleus of an atom by emission of particles, usually accompanied by electromagnetic radiation. The energy produced by radioactivity has important military and industrial applications.
..... Click the link for more information. in uraniumuranium
, radioactive metallic chemical element; symbol U; at. no. 92; mass number of most stable isotope 238; m.p. 1,132&degC;; b.p. 3,818&degC;; sp. gr. 19.1 at 25&degC;; valence +3, +4, +5, or +6.
..... Click the link for more information. ; the Curies made further investigations of the phenomenon and shared with Becquerel the 1903 Nobel Prize in Physics (see CurieCurie
, family of French scientists. Pierre Curie, 1859–1906, scientist, and his wife, Marie Sklodowska Curie, 1867–1934, chemist and physicist, b. Warsaw, are known for their work on radioactivity and on radium.
..... Click the link for more information. , family).

becquerel

[¦bek·ə¦rel or be′krel] (nucleonics) The International System unit of activity of a radionuclide, equal to the activity of a quantity of a radionuclide having one spontaneous nuclear transition per second. Symbolized Bq.

becquerel

the derived SI unit of radioactivity equal to one disintegration per second.

Becquerel

Antoine Henri . 1852--1908, French physicist, who discovered the photographic action of the rays emitted by uranium salts and so instigated the study of radioactivity: Nobel prize for physics 1903

becquerel

(Bq) [bek-ĕ-rel´] the SI unit of radioactivity, defined as the quantity of a radionuclide that undergoes one decay per second; one curie equals 3.7 × 10¹⁰ becquerels.

Bec·que·rel

(bek-ă-rel'), Antoine H., French physicist and Nobel laureate, 1852-1908. See: becquerel, Becquerel rays.

bec·que·rel (Bq),

(bek-ă-rel'), The SI unit of measurement of radioactivity, equal to 1 disintegration per second; 1 Bq = 0.027 × 10^-9 Ci. [A. H. Becquerel]

Becquerel

The International System (SI) unit for measuring radioactivity based on radioactive decay, equal to 1 disintegration (nuclear transition)/sec. Named after Antoine-Henri Becquerel, French Nobel Laureate, who discoverered of radioactivity.
1 Bq = 3.70 x 1010 Ci (Curie, which it supersedes)

bec·que·rel

(bek-ă-rel') The SI unit of measurement of radioactivity, equal to 1 disintegration per second; 1 Bq = 0.027 × 10^-9 Ci.
See also: absorption[A. H. Becquerel]

Becquerel

A unit of the strength of radioactivity from a particular source. A Becquerel is defined as one nuclear disintegration per second.

Becquerel,

Antoine H., French physicist and Nobel laureate, 1852-1908. becquerel - the SI unit of measurement of radioactivity.Becquerel rays - obsolete term for radiation given off by uranium and other radioactive substances.

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Synonyms for Becquerel

noun French physicist who discovered that rays emitted by uranium salts affect photographic plates (1852-1908)

Synonyms