capno-, capn-, capnod-
(Greek: smoke; vapor; sooty [extended meaning is carbon dioxide])
2. The measurement of carbon dioxide in a volume of gas.
The most common monitoring units are based on the selective absorption of infrared light by carbon dioxide and water vapor.
Capnometries usually work on the principle that carbon dioxide absorbs infra-red radiation. A beam of infra-red light is passed across the gas sample to fall on a sensor. The presence of carbon dioxide in the gas leads to a reduction in the amount of light falling on the sensor, which changes the voltage in a circuit.
Capnometry measures the concentration of carbon dioxide (which provides information on blood flow) through the lungs, which then goes on to other organs.
2. A fear of smoke exhausts from motor vehicles which are blamed for causing so much pollution in the air: Mr. Straight, afflicted with capnophobia, never had a car because he dreaded the fumes produced by such vehicles and he only went places by train.
Here is a capnophobia link, Part 1 of 4, with images and information for a better understanding of capnophobiacs and why they hate smoking as related to the dangerous practice of smokers.
Also see the pages at this Capnophobia-Fumiphobia, Part 1 for pages about the smoking problems in our global societies.
Smoking is a shocking thing—blowing smoke out of our mouths into other people's mouths, eyes, and noses, and having the same thing done to us.
Believing that we are doing something worthwhile when we are smoking is the first illusion of tobacco.
2. An abnormally increased arterial carbon dioxide tension as a result of hypoventilation; hypercarbia.
2. Abnormally decreased arterial carbon dioxide tension; hypocarbia.