cobalt (redirected from cobalt-57)

co·balt  (kbôlt)

n. Symbol Co

A hard, brittle metallic element, found associated with nickel, silver, lead, copper, and iron ores and resembling nickel and iron in appearance. It is used chiefly for magnetic alloys, high-temperature alloys, and in the form of its salts for blue glass and ceramic pigments. Atomic number 27; atomic weight 58.9332; melting point 1,495°C; boiling point 2,900°C; specific gravity 8.9; valence 2, 3. See Table at element.

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[German Kobalt, from Middle High German kobolt, variant of kobold, goblin (from silver miners' belief that cobalt had been placed by goblins who had stolen the silver).]

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cobalt [ˈkəʊbɔːlt]

n

(Chemistry / Elements & Compounds) a brittle hard silvery-white element that is a ferromagnetic metal: occurs principally in cobaltite and smaltite and is widely used in alloys. The radioisotope cobalt-60, with a half-life of 5.3 years, is used in radiotherapy and as a tracer. Symbol: Co; atomic no.: 27; atomic wt.: 58.93320; valency: 2 or 3; relative density: 8.9; melting pt.: 1495°C; boiling pt.: 2928°C

[German Kobalt, from Middle High German kobolt goblin; from the miners' belief that malicious goblins placed it in the silver ore]

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cobalt  (kbôlt)

Symbol Co

A silvery-white, hard, brittle metallic element that occurs widely in metal ores. It is used to make magnetic alloys, heat-resistant alloys, and blue pigment for ceramics and glass. Atomic number 27; atomic weight 58.9332; melting point 1,495°C; boiling point 2,900°C; specific gravity 8.9; valence 2, 3. See Periodic Table.

Thesaurus

Noun

1.

cobalt - a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition atomic number 27, Co metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. cobalt 60 - a radioactive isotope of cobalt with mass number 60; a source of exceptionally intense gamma rays; used in radiation therapy cobaltite - a rare silvery-white mineral; important ore of cobalt smaltite - a grey mineral consisting of cobalt arsenide and nickel; an important source of cobalt and nickel

Translations

cobalt [ˈkəʊbɒlt]

A. N → cobalto m

B. CPD cobalt blue N → azul m cobalto
cobalt bomb N → bomba f de cobalto

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cobalt [ˈkəʊbɔːlt]

n

(= metal) → cobalt m

(also cobalt blue) (= colour) → bleu m de cobalt

adj (in colour) → de cobalt

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cobalt

n → Kobalt nt

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cobalt [ˈkəʊbɒlt] n → cobalto

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cobalt [ˈkəʊbɒlt] n → cobalto

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cobalt

n cobalt [ˈkəuboːlt]

a silver-white metal element with compounds that give a blue colouring. kobalt عُنْصُر الكوبالت кобалт kobalt kobolt das Kobalt κοβάλτιο cobalto koobalt کبالت koboltti cobalt קוֹבַלט एक प्रकार की धातु kobalt kobalt kobalt kóbalt cobalto コバルト 코발트 kobaltas kobalts kobalt kobalt kobolt kobalt cobalto cobalt кобальт kobalt kobalt kobalt kobolt โคบอลต์ kobalt 鈷 кобальт کوبالٹ دھات màu côban 钴