Centigrade: A thermometer scale in which the freezing point of water at sea level is 0’C and the boiling point of water at sea level is 100’C. The Centigrade scale is used in most of the world to indicate the temperature on a thermometer, but the Fahrenheit scale is still popular in the US. This anachronism requires conversion from Centigrade (‘C) to Fahrenheit (‘F), and vice versa. 1’C = (5/9) (‘F’32). 1’F = (9/5)(‘C) + 32’.
- Centimeter (cm)
Centimeter (cm): A unit of measure in the metric system which is 1/100’th of a meter. There are 2.54 centimeters (cms) in one inch. The centimeter is commonly used in medicine to state the size of objects or distance between points. It may seem senseless to define a centimeter in a medical dictionary but in […]
- Centimorgan (cM)
Centimorgan (cM): A unit of measure of genetic recombination frequency. One cM is equal to a 1% chance that a marker at one genetic locus will be separated from a marker at another locus due to crossing over in a single generation. In humans, 1 cM is equivalent, on average, to 1 million base pairs. […]
Central: At or near the center. In anatomy and medicine (as elsewhere), central is the opposite of “peripheral” which means away from the center. The word “peripheral” comes from the Greek “peripheria” (“peri-“, around or about + “pherein”, to bear, carry). A central line is an infusion tube that is located in or near the […]
- Central auditory processing disorder
Central auditory processing disorder: A neurological disorder in which a person has difficulty properly interpreting sounds received by the ears, particularly the phonemes of speech. Abbreviated CAPD. CAPD can result in difficulties with attention, speech production, and reading.
- Central core disease of muscle
Central core disease of muscle: One of the conditions that produces ‘floppy baby’ syndrome. Central core disease of muscle causes hypotonia (low muscle tone) in a newborn baby, slowly progressive muscle weakness, and muscle cramps after exercise. Muscle biopsy shows a key diagnostic finding of absent mitochondria in the center of many muscle fibers. It […]