cobalt

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cobalt

 (Co) [ko´bawlt]
a chemical element, atomic number 27, atomic weight 58.933. (See Appendix 6.)
cobalt 57 a radioisotope of cobalt, atomic mass 57, having a half-life of 270 days; used as a label for cyanocobalamin. Symbol 57Co.
cobalt 60 a radioisotope of cobalt, atomic mass 60, having a half-life of 5.27 years and a principal gamma ray energy of 1.33 MeV; used as a radiation therapy source. Symbol 60Co.

co·balt (Co),

(kō'bawlt),
A steel-gray metallic element, atomic no. 27, atomic wt. 58.93320; a bioelement and a constituent of vitamin B12; certain of its compounds are pigments, for example, cobalt blue.
[Ger. kobalt, goblin or evil spirit]

cobalt

A metallic element (atomic number 27; atomic weight 58.93) critical to the formation of red cells, maintenance of neural tissue, and in certain metabolic reactions. Cobalt is the central ion in vitamin B12; it is present in dairy products, organ meats, shellfish and sea vegetables.

COBALT

Cardiology A clinical study–Continuous Infusion vs Double-Bolus Administration of Alteplase—designed to compare the effect on M&M of Pts undergoing AMI of accelerated–which has now become the standard administration of alteplase–over 90 mins, with 2 bolus doses of alteplase given 30 mins apart. See Alteplase. Cf GUSTO.

co·balt

(Co) (kō'bawlt)
A steel-gray metallic element, atomic no. 27, atomic wt. 58.93320; a bioelement and a constituent of vitamin B12; certain of its compounds are pigments, e.g., cobalt blue.
[Ger. kobalt, goblin or evil spirit]

cobalt

An element in the vitamin B12 molecule. The isotope Cobalt-60 is a powerful emitter of gamma rays and is used as a radiation source for sterilizing medical materials and in the treatment of cancer.

co·balt

(kō'bawlt)
A steel-gray metallic element; constituent of vitamin B12; some compounds are pigments.
[Ger. kobalt, goblin or evil spirit]