Dangerous oxygen Synonyms
Synonyms for phrase
DO abbreviation
DO is an abbreviation for Dangerous OxygenWhat does DO stand for?
DO stands for "Dangerous Oxygen" Definitions for Oxygen
- (noun) 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