cobalt(redirected from cobalt 57)
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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 2,927°C; specific gravity 8.9; valence 2, 3. See Periodic Table.
[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); see kobold.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(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
[C17: German Kobalt, from Middle High German kobolt goblin; from the miners' belief that malicious goblins placed it in the silver ore]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a hard, ductile element occurring in compounds whose silicates afford important blue coloring substances for ceramics. Symbol: Co; at. wt.: 58.933; at. no.: 27; sp. gr.: 8.9 at 20°C.
[1675–85; < German Kobalt, variant of Kobold kobold]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Symbol Co A silvery-white, hard, brittle metallic element that occurs widely in ores containing other metals. It is used to make magnetic alloys, heat-resistant alloys, and blue pigment for ceramics and glass. Atomic number 27. See Periodic Table.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||cobalt - a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition|
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
A. N → cobalto m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
adj (in colour) → de cobalt
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
n → Kobalt nt
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
cobalt[ˈkəʊbɒlt] n → cobalto
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
a silver-white metal element with compounds that give a blue colouring. kobalt عُنْصُر الكوبالت кобалт cobalto kobalt das Kobalt kobolt κοβάλτιοcobalto koobalt کبالت koboltti cobalt קוֹבַלט एक प्रकार की धातु kobalt kobalt kobalt kóbalt cobalto コバルト 코발트 kobaltas kobalts kobalt kobaltkoboltkobalt كوبالټ، يو سپين نقره يۍ رنګه فلز چه داوسپينى او نكلوسره پيداكيږى cobalto cobalt кобальт kobalt kobalt kobalt kobolt โคบอลต์ kobalt 鈷 кобальт کوبالٹ دھات màu côban 钴
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
English-Spanish Medical Dictionary © Farlex 2012
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.