Category: C

A component of information theory. The stimuli of symbols passing through the communication channel. The use of language is the coded message.  

In emergency operations, a means of delivering a specific message or of alerting a particular group or team by signaling with voice, bell, light, pager, or other means.  

School-sponsored programs organized and conducted outside of the planned instructional program. Examples include clubs, councils, and sports programs. Also referred to as extracurricular activities.  

A small, snail-shaped organ of the inner ear in which the energy of sound is converted into electrical energy for transmission to the brain. A spiral tube inside the inner ear, which is the essential organ of hearing. A fluid-filled, snail-shaped, bony shell in the inner ear, which contains the organ of Corti, the actual…

The lowest segment of the vertebral column, comprising three to five vertebrae which form the coccyx.  

A paste derived from the coca leaf in the process of making cocaine.  

A severe, relatively rare psychotic reaction characterized by paranoia and hallucinations resulting from prolonged use of cocaine.  

Dried leaves of the shrub Erythroxylum coca, from which several alkaloids including cocaine are obtained.    

A metal element possessing radioactive isotopes used in the treatment of some cancers. An essential mineral needed as a component of vitamin B12. Cobalt is a mineral that forms part of the structure of vitamin B12 (also known as cobalamins). No other nutritional functions of cobalt have been clearly identified. Metallic element, the radioactive isotope…

The time required for a sample of blood to clot under standard controlled conditions. The time taken for blood or blood plasma to coagulate. When measured under controlled conditions and using appropriate techniques, coagulation times may be used to test the function of the various stages of the blood coagulation process. The time required for…