| AO | abdominal aorta; achievement orientation; acid output; acridine orange; ankle orthosis; anodal openi... |
|---|---|
| ARM | adrenergic receptor material; aerosol rebreathing method; ambulatory renal monitor; anorectal manome... |
| at | air tight; atom, atomic |
| at | no atomic number |
| at vol | atomic volume |
| independent power producer | A power production facility that is not part of a regulated utility. (05 Dec 1998) |
|---|---|
| firm power | (firm energy) Power which is guaranteed by the supplier to be available at all times during a period covered by a commitment. That portion of a customer's energy load for which service is assured by the utility provider. (05 Dec 1998) |