Sunday, April 19, 2009

Acapnia

Acapnia: Less than the normal level of carbon dioxide in the blood. The opposite of hypercapnia. The origin of the word "acapnia" is curious. It comes from the Greek "a-" meaning "without" + "kapnos" meaning "smoke" so acapnia literally means "smokeless" referring to carbon dioxide which is a principal part of smoke.

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