| OSAS | obstructive sleep apnea syndrome |
|---|---|
| PMS | patient management system; perimenstrual syndrome; periodic movements during sleep; phenazine methos... |
| PS | pacemaker syndrome; paired stimulation; paradoxical sleep; paraspinal; parasympathetic; Parkinson sy... |
| PSA | parasternal short axis; pleomorphic salivary gland adenoma; polyethylene sulfonic acid; polysacchari... |
| qhs | every hour of sleep [Lat. quaque hora somni] |
| species area curve | The curve on a graph produced when plotting the cumulative number of plant species found in a series of quadrats against the cumulative number or area of those quadrats, it is used to determine the number of quadrats sufficient to adequately survey the herbaceous understory. (09 Oct 1997) |
|---|---|
| stress-bearing area | Surfaces of structures that resist forces, strains, or pressures brought upon them during function. (05 Mar 2000) |
| striate area | Area of the occipital lobe concerned with vision. (12 Dec 1998) |
| Stroud's pectinated area | An obsolete term for the area of the anal canal lying just below the rectal columns. (05 Mar 2000) |
| subcallosal area | A slender vertical whitish band immediately anterior to the lamina terminalis and anterior commissure; contrary to its name, it is not a cortical convolution but is the ventral continuation of the transparent septum. Synonym: area subcallosa, gyrus paraterminalis, gyrus subcallosus, pedunculus corporis callosi, corpus paraterminale, paraterminal body, paraterminal gyrus, peduncle of corpus callosum, precommissural septal area, subcallosal area, Zuckerkandl's convolution. (05 Mar 2000) |
| superior vestibular area | The area in the fundus of the internal acoustic meatus superior to the transverse crest through which the superior part of the vestibular nerve passes to reach the macula utriculus and the ampullae of the anterior and lateral saemicircular ducts. Synonym: area vestibularis superior. (05 Mar 2000) |
| supplementary motor area epilepsy | A localization-related epilepsy syndrome in which seizures originate from the supplementary motor area of the mesial frontal lobe. Typical seizure semiology includes sudden bilateral tonic movements, vocalization, and preservation of consciousness. Attacks are often nocturnal. (05 Mar 2000) |
| supporting area | Those areas of the maxillary and mandibular edentulous ridges which are considered best suited to carry the forces of mastication when the dentures are in function. Synonym: denture foundation area. (05 Mar 2000) |
| denture-bearing area | That portion of the basal seat which supports the complete or partial denture base under occlusal load. Synonym: basal seat, denture-bearing area, denture-supporting area, stress-bearing area, supporting area, tissue-bearing area. (05 Mar 2000) |
| denture foundation area | That portion of the basal seat which supports the complete or partial denture base under occlusal load. Synonym: basal seat, denture-bearing area, denture-supporting area, stress-bearing area, supporting area, tissue-bearing area. (05 Mar 2000) |
| denture-supporting area | That portion of the basal seat which supports the complete or partial denture base under occlusal load. Synonym: basal seat, denture-bearing area, denture-supporting area, stress-bearing area, supporting area, tissue-bearing area. (05 Mar 2000) |
| dermatomic area | The area of skin innervated by a single posterior spinal nerve (sensory nerve). (27 Sep 1997) |
| disturbed area | <ecology> An area where vegetation, soil and/or hydrology have been significantly altered, thereby making a wetland determination difficult. (11 Jan 1998) |
| impression area | In dentistry, that surface which is recorded in an impression. (05 Mar 2000) |
| inferior vestibular area | The area of the fundus of the internal acoustic meatus inferior to the transverse crest through which the interior portion of the vestibular (saccular) nerve passes. Synonym: area vestibularis inferior. (05 Mar 2000) |