Co

Co cobalt.

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CO cardiac output.

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Co

The symbol for the element cobalt.

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CO

abbr.

cardiac output

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Co,

symbol for the element cobalt.

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CO,

1 formula for carbon monoxide.

2 abbreviation for cardiac output.

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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.

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conscientious objection [kon″she-en´shus]

an appeal to conscience in refusing to do, or seeking exemption from, acts that threaten a person's sense of integrity. Patients as well as physicians and nurses may appeal to conscience in refusing treatment or procedures. Called also conscientious refusal.

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Co

chemical symbol, cobalt.