Hypoxemia (or hypoxaemia in British English) is an abnormally low level of oxygen in the blood. More specifically, it is oxygen deficiency in arterial blood.ypoxemia (or hypoxaemia in British English) is an abnormally low level of oxygen in the blood. More specifically, it is oxygen deficiency in arterial blood.
Best Answer: Boxers tend to be loose and shaped like shorts. Briefs are more of a snug fit and have no leg. A compromise between the two styles has been developed, called boxer-briefs that has qualities of both. Boxers are great for feeling some freedom, but briefs are good for keeping support. I like boxers for when I am relaxing but briefs when I run.
Australians generally use the word briefs to refer to the bikini-style underwear for men, which do not have the Y-front opening. Since the ending of the 20th century, a hybrid called boxer briefs has become popular. Like boxers, they have short legs, but like briefs, they are made of elastic, snug-fitting material.