manganese


Also found in: Dictionary, Thesaurus, Financial, Acronyms, Encyclopedia, Wikipedia.
Related to manganese: manganese steel, Manganese deficiency

manganese

 (Mn) [mang´gah-nēs]
a chemical element, atomic number 25, atomic weight 54.938. (See Appendix 6.) Its salts occur in the body tissue in very small amounts and serve as activators of liver arginase and other enzymes.
manganese poisoning a condition usually caused by inhalation of manganese dust; symptoms of chronic exposure include mental disorders accompanying a syndrome resembling Parkinson's disease, and inflammation throughout the respiratory system.

man·ga·nese (Mn),

(mang'gă-nēs),
A metallic element resembling iron and often associated with it, particularly in ores; atomic no. 25, atomic wt. 54.94; manganous salts are often used in medicine.
Synonym(s): manganum
[Mod. L. manganesium, manganum, an altered form of magnesium]

manganese

/man·ga·nese/ (Mn) (man´gah-nēs) a chemical element, at. no. 25; its salts occur in the body tissue in very small amounts and activate liver arginase and other enzymes. Poisoning, usually due to inhalation of manganese dust, is manifested by symptoms including mental disorders accompanying a syndrome resembling parkinsonism, and inflammation of the respiratory system.

manganese (Mn)

[mang′gənēs]
Etymology: L, manganesium, associated with magnesium
a common metallic element found in trace amounts in tissues of the body, where it aids in the functions of various enzymes. Its atomic number is 25; its atomic mass is 54.938.

manganese

An essential trace metal (atomic number 25; atomic weight 54.9) required by certain enzymes (e.g., arginase and cholinesterase), which is ingested in the diet via coffee, tea, egg yolks, whole grains, leafy greens, nuts and seeds.

man·ga·nese

(mang'gă-nēz)
A metallic element resembling and often associated, in ores, with iron; atomic no. 25, atomic wt. 54.94; manganous salts are sometimes used in medicine.
[Mod. L. manganesium, manganum, an altered form of magnesium]

manganese,

n an element/mineral found in cereal grains, nuts, and tea; a component of many enzymes. Has been used to treat painful menstruation and osteoporosis and as a dietary adjunct to alleviate deficiencies associated with seizure disorders and diabetes. Concurrent use of antacids may impair absorption of manganese. No known precautions in moderate doses.

man·ga·nese

(mang'gă-nēz)
A metallic element resembling iron; salts are often used in medicine.
[Mod. L. manganesium, manganum, an altered form of magnesium]

manganese (Mn)

(mang´gənēz´),
n a common metallic element found in trace amounts in tissues of the body, where it aids in the function of various enzymes. Its atomic number is 25 and its atomic weight is 54.9380.

manganese

a chemical element, atomic number 25, atomic weight 54.938, symbol Mn. See Table 6. Its salts occur in the body tissue in very small amounts and serve as activators of liver arginase and other enzymes.

manganese nutritional deficiency
in cattle, sheep and pigs is thought to cause infertility and skeletal deformities, including enlarged joints, pain, knuckling at the fetlocks and twisting of the legs. It is a rare deficiency in dogs and cats.
References in periodicals archive ?
Consmin is a leading manganese ore producer with mining operations in Australia and Ghana.
Blood samples for manganese measurements were obtained from mothers recruited between July 2007 and January 2009.
This range could introduce significant constitutional super-cooling compared to manganese concentration deviations from the congruent point.
WMN currently hold the rights to two promising manganese exploration tenements near Atembua in West Timor, an area regarded as an emerging manganese province.
A buyer may be found for Manganese which - freed from debts - may be able to turn in a profit.
Only five years ago, Manganese shares were trading at around 800p and the firm was valued at PS230 million.
Manganese, which is 20% owned by China's largest private automaker Geely, reported a 10% plunge in UK sales in 2011 as drivers continued to shy away from buying new vehicles due to economic uncertainty.
The strength of interest in the placement ensures Shaw River remains a well funded manganese development company that continues to execute its strategy of building a global manganese business.
For each child, the researchers measured the concentration of manganese in tap water from their home, as well as iron, copper, lead, zinc, arsenic, magnesium and calcium.
Manganese ore is vital raw material in the production of steel.
The strategy, based on an intense integration of public health and water utility operations at the administrative/leadership and technical levels, took the better part of a year to implement but did resolve Madison's manganese issue.