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COBALT
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
Synonyms:
atomic number 27; Co; cobalt
Classified under:
Hypernyms ("cobalt" is a kind of...):
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.)
Hyponyms (each of the following is a kind of "cobalt"):
cobalt 60 (a radioactive isotope of cobalt with mass number 60; a source of exceptionally intense gamma rays; used in radiation therapy)
Holonyms ("cobalt" is a substance of...):
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)
Context examples:
The electrodes were able to maintain a reasonable capacity because, unlike cobalt oxide, the VS2-TiS2 material is electrically conductive.
(Creating Better Lithium-Ion Batteries Made Possible with New Discovery, The Titi Tudorancea Bulletin)
METAP2, a member of the methionyl aminopeptidase family, binds two cobalt or manganese ions and protects the alpha subunit of eukaryotic initiation factor 2 (EIF2) from inhibitory phosphorylation by removing the amino-terminal methionine residue from nascent protein; this aminopeptidase may be overexpressed in a variety of tumor cell types.
(Fumagillin-Derived Polymer Conjugate XMT-1107, NCI Thesaurus)
Cobalt chloride Co-57 is a radiopharmaceutical used in nuclear medicine as an imaging agent in the diagnosis of certain forms of cancer.
(Cobaltous chloride Co-57, NCI Thesaurus)
Exposure to cobalt sulfate results in irritation of the skin, eyes and respiratory tract and affects the thyroid, lungs, heart and kidneys.
(Cobaltous Sulfate, NCI Thesaurus)
Scientists improved performance by substituting cobalt oxide with vanadium disulfide (VS2).
(Creating Better Lithium-Ion Batteries Made Possible with New Discovery, The Titi Tudorancea Bulletin)
On the artificial leaf, two light absorbers, similar to the molecules in plants that harvest sunlight, are combined with a catalyst made from the naturally abundant element cobalt.
(‘Artificial leaf’ successfully produces clean gas, University of Cambridge)
The researchers layered the elements one atomic plane at a time so sheets of titanium oxide one-atom thick transferred an electron to sheets of cobalt oxide with the same thickness.
(Picoscience and a plethora of new materials, National Science Foundation)
Before YInMn blue, the last blue discovery was cobalt aluminum oxide-based blue, synthesized by a French chemist in 1802.
(Chemists find path to 'new blue' in meteorite minerals, National Science Foundation)
Cobalt sulfate is mutagenic in mammalian cells and is reasonably anticipated to be a human carcinogen based on evidence of carcinogenicity in experimental animals.
(Cobaltous Sulfate, NCI Thesaurus)
In a traditional lithium-ion battery, the anode is made of graphite, while the cathode is composed of lithium cobalt oxide.
(Creating Better Lithium-Ion Batteries Made Possible with New Discovery, The Titi Tudorancea Bulletin)
