atomic number 8, oxygen, O - 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

smoked salmon - salmon cured by smoking or in a smoky brine

Scandinavian lox - salt-cure lox

Nova scotia lox - sugar-cure lox