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]