a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues
(with `in') guardianship over; in divorce cases it is the right to house and care for and discipline a child; "my fate is in your hands"; "too much power in the president's hands"; "your guests are now in my custody"; "the mother was awarded custody of the children"