| surface thalamic veins | One or more veins running a subependymal course in a coronal plane over the thalamus, terminating in the internal cerebral vein. Synonym: lateral direct veins, surface thalamic veins. (05 Mar 2000) |
|---|---|
| surface thermometer | A thermometer in the form of a disk or strip that indicates the temperature of the portion of the skin to which it is applied. (05 Mar 2000) |
| surface water | <ecology> Water present above the substrate or soil surface. (09 Oct 1997) |
| symphysial surface of pubis | symphysial surface of pubis |
| denture basal surface | That portion of the surface of a denture which has its contour determined by the impression and bears the greater part of the occlusal load. Synonym: denture basal surface. (05 Mar 2000) |
| denture foundation surface | That portion of the surface of a denture which has its contour determined by the impression and bears the greater part of the occlusal load. Synonym: denture basal surface. (05 Mar 2000) |
| denture impression surface | That portion of the surface of a denture which has its contour determined by the impression; it includes the borders of the denture and extends to the polished surface. (05 Mar 2000) |
| denture polished surface | That portion of the denture which extends in an occlusal direction from the border of the denture and includes the palatal surface; it is the part of the denture base which is usually polished and includes the buccal and lingual surface's of the teeth. (05 Mar 2000) |
| diaphragmatic surface | The surface of an organ in contact with the diaphragm, as of the heart, liver, lungs, and spleen. Synonym: facies diaphragmatica. (05 Mar 2000) |
| distal surface of tooth | The contact surface of a tooth that is directed away from the median plane of the dental arch; opposite to the mesial surface of a tooth. Synonym: facies distalis dentis. (05 Mar 2000) |
| dorsal surface | The dorsal surface of a structure such as the sacrum and the scapula. Synonym: facies dorsalis. (05 Mar 2000) |
| dorsal surface of digit | The dorsal surface of a finger or toe. Synonym: facies digitalis dorsalis. (05 Mar 2000) |
| dorsal surface of sacrum | The posterosuperior aspect of the sacrum marked by a median and two lateral sacral crests between which four dorsal sacral foramina are located on each side. Synonym: facies dorsalis ossis sacri. (05 Mar 2000) |
| dorsal surface of scapula | The outer aspect of the body of the scapula, subdivided by the prominent spine of the scapula into a smaller supraspinous fossa and a larger infraspinous fossa. Synonym: facies dorsalis scapulae. (05 Mar 2000) |
| drift surface | <radiobiology> Surface on which the guiding centre of a particle is constrained to move, due to the effects of the laws of adiabatic invariance on its drift motion. (09 Oct 1997) |