

Synonymer till o
substantiv
- (a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust) oxygen; atomic number 8; O
- (the 15th letter of the Roman alphabet) O
- (the blood group whose red cells carry neither the A nor B antigens) type O; group O; O

