| ORD | optical rotatory dispersion; oral radiation death |
|---|---|
| PM | after death (Lat. post mortem); after noon [Lat. post meridiem]; mean pressure; pacemaker; pantomogr... |
| PND | paroxysmal nocturnal dyspnea; partial neck dissection; postnasal drainage; postnasal drip; postnatal... |
| POD | peroxidase; place of death; podiatry; polycystic ovary disease; pool of doctors; postoperative day; ... |
| pSIDS | partially unexplained sudden infant death syndrome |
| fixed rate pulse generator | A generator in which the rate of discharge is independent of the natural activity of the heart. Synonym: fixed rate pulse generator. (05 Mar 2000) |
|---|---|
| flow rate | The amount of water that moves through an area (usually pipe) in a given period of time. (05 Dec 1998) |
| 5-year relative survival rate | <statistics> The likelihood that a patient will not die from causes associated with his or her cancer for at least 5 years after diagnosis. This is the standard many professionals use when determining someone a survivor of cancer. (16 Dec 1997) |
| lethality rate | <statistics> The proportion of deaths in a population or to a specific number of the population. (18 Nov 1997) |
| lowest achievable emissions rate | (LAER) Used to describe air emissions control technology. A rate of emissions defined by the permitting agency. LEAR sets emission limits for non-attainment areas. (05 Dec 1998) |