chromium

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chromium

 (Cr) [kro´me-um]
a chemical element, atomic number 24, atomic weight 51.996. (See Appendix 6.) It is an essential dietary trace element, but hexavalent chromium is carcinogenic.
chromium 51 a radioactive isotope of chromium having a half-life of 27.7 days and decaying by electron capture, emitting gamma rays. It is used to label red blood cells for measurement of red cell mass or volume, survival time, and sequestration studies, and for the diagnosis of gastrointestinal bleeding, and is used to label platelets to study their survival. Symbol 51Cr.

chro·mi·um (Cr),

(krō'mē-ŭm),
A metallic element, atomic no. 24, atomic wt. 51.9961. A dietary essential bioelement. 51Cr (half-life of 27.70 days) is used as a diagnostic aid in many disorders (for example, gastrointestinal protein loss).
[G. chroma, color]

chromium

A metallic element (atomic number 24; atomic number 51.99), which is an essential mineral that potentiates the action of insulin and is present in trace amounts in various enzymes; chromium is present in various foods including brewers’ yeast, whole grains, peanuts, wheat germ and skim milk.

chro·mi·um

(Cr) (krō'mē-ŭm)
A metallic element, atomic no. 24, atomic wt. 51.9961. A dietary essential bioelement, 51Cr (half-life of 27.70 days) is used as a diagnostic aid in many disorders (e.g., gastrointestinal protein loss).
[G. chrōma, color]

chro·mi·um

(krō'mē-ŭm)
A metallic element and essential dietary bioelement; used as diagnostic aid in many disorders (e.g., gastrointestinal protein loss).
[G. chroma, color]
References in periodicals archive ?
[41.] Adachi S.: [Effect of chromium compounds on the respiratory system: Part 5.
Chromium compounds cause inhibition of root cell division/elongation or extension of the cell cycle enhancement of growth of root hairs and increment of relative fraction of pith and cortical tissue layers (Chen et al.
In turn, these bacteria then cleanse the affected area by altering the chemical make-up of the chromium compounds to make them harmless.
TABLE 2 Hexavalent Chromium Compounds OSHA identifies Cr(VI) compounds as in wide use in pigments, chemical synthesis, and metal plating.
Hexavalent chromium compounds are widely used in the industry as ingredients and catalysts in pigments, metal plating and chemical synthesis.
Hexavalent chromium compounds are widely used in the chemical industry as ingredients and catalysts in pigments, metal plating and chemical synthesis.
Our study established the content of chromium in whole oyster meats, some of which may have been in the digestive tract, associated with food particles, including those that would have complexed with soluble chromium compounds. However, as indicated previously, the total content of bioavailable chromium is important due to the consumption of whole oysters as a food product.
This contains chromium compounds in different valancy states (Walsh
However, the use and disposal of chromium compounds give rise to a complex environmental and public health protection problem.
Prevention of the aging of wood material: Factors affecting the interaction between chromium compounds and wood.
Further risk assessments led to the conclusion that chromium compounds had to be added to the list.