| PPD | packs per day; paraphenylenediamine; percussion and postural drainage; permanent partial disability;... |
|---|---|
| PPRF | paramedian pontine reticular formation; postpartum renal failure |
| PPS | Personal Preference Scale; physician, patient and society [course]; polyvalent pneumococcal polysacc... |
| PPT | parietal pleural tissue; partial prothrombin time; peak-to-peak threshold; Pfeiffer-Palm-Teller [syn... |
| PPTL | postpartum tubul ligation |
| late seral treatment | A treatment in which late seral species will be established after thinning. (05 Dec 1998) |
|---|---|
| late-successional forest | Forest seral stages which include mature and old- growth age classes. (05 Dec 1998) |
| late-successional reserve | An area of forest where the management objective is to protect and enhance conditions of late successional and old-growth forest ecosystems. (05 Dec 1998) |
| late syphilis | Involvement of the cardiovascular or central nervous system, or the development of a gumma in any organ, due to infection with Treponema pallidum; usually several years to 2-3 decades after the initial infection. Synonym: tertiary syphilis. (05 Mar 2000) |
| late systole | The interval in the cardiac rhythm immediately preceding diastole. Synonym: late systole. (05 Mar 2000) |