oxygen
— Noun
– English
~ 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 debt
— Noun
– English
~ a cumulative deficit of oxygen resulting from intense exercise; the deficit must be made up when the body returns to rest
oxygen acid
— Noun
– English
~ any acid that contains oxygen
oxygen deficit
— Noun
– English
~ temporary oxygen shortage in cells resulting from strenuous exercise
oxygen mask
— Noun
– English
~ a breathing device that is placed over the mouth and nose; supplies oxygen from an attached storage tank
oxygenise
— Verb
– English
~ dehydrogenate with oxygen
oxygenise
— Verb
– English
~ change (a compound) by increasing the proportion of the electronegative part; or change (an element or ion) from a lower to a higher positive valence: remove one or more electrons from (an atom, ion, or molecule)