On Oxygen definition
On Oxygen means oxygen needed to perform activities of daily life, e.g., not oxygen that is prescribed only for comfort care, at night, for surgery, or on occasion.
Nitrogen oxides means nitric oxide and nitrogen dioxide, expressed as nitrogen dioxide (NO2);
Beam axis means a line from the source through the centers of the x-ray fields.
Flare means a vendor-provided informational sign that, at a minimum, displays the prize structure, the serial number of the sleeve in play, the odds of winning a prize, and the price of the ticket. (3-26-08)
Oxides of nitrogen means the sum of the volume mixing ratio (ppbv) of nitrogen monoxide (nitric oxide) and nitrogen dioxide expressed in units of mass concentration of nitrogen dioxide (μg/m3);
Valve means a device used to control the flow of water in the irrigation system.