| Stensen's foramen | One of several (usually four) openings of the incisive canals into the incisive fossa. Synonym: foramen incisivum, incisor foramen, Stensen's foramen. (05 Mar 2000) |
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| Stensen's plexus | The venous network surrounding the parotid (Stensen's) duct. (05 Mar 2000) |
| Stensen's veins | Several veins (usually four) from the vascular tunic formed of veins accompanying the posterior ciliary arteries and the ciliary body; then drain into the superior or inferior ophthalmic vein. Synonym: venae vorticosae, venae choroideae oculi, choroid veins of eye, Stensen's veins, vasa vorticosa, vorticose veins. (05 Mar 2000) |
| stent | <equipment> A tube made of metal or plastic that is inserted into a vessel or passage to keep the lumen open and prevent closure due to a stricture or external compression. Stents are commonly used to keep blood vessels open in the coronary arteries, into the oesophagus for strictures or cancer, the ureters to maintain drainage from the kidneys, or the bile duct for pancreatic cancer or cholangiocarcinoma. The stents are usually inserted under radiological guidance and can be inserted percutaneously. (12 Nov 1998) |
| Stent graft | An inlay skin graft, or a skin graft held in place by a tie-over dressing. (05 Mar 2000) |
| Stent, C | <person> English dentist, +1901. See: stent, Stent graft. (05 Mar 2000) |
| stentor | 1. A herald, in the Iliad, who had a very loud voice; hence, any person having a powerful voice. 2. <zoology> Any species of ciliated Infusoria belonging to the genus Stentor and allied genera, common in fresh water. The stentors have a bell-shaped, or cornucopia-like, body with a circle of cilia around the spiral terminal disk. 3. <zoology> A howling monkey, or howler. Origin: L. Stentor, Gr. Source: Websters Dictionary (01 Mar 1998) |
| stentorin | <chemistry> A blue colouring matter found in some stentors. See Stentor. Source: Websters Dictionary (01 Mar 1998) |
| stents | Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting. (12 Dec 1998) |
| Stenvers projection | Oblique radiographic projection of the skull devised to provide an unobstructed view of the petrous bone, bony labyrinth, internal auditory canal, and meatus. Synonym: Stenvers view. (05 Mar 2000) |
| Stenvers view | Oblique radiographic projection of the skull devised to provide an unobstructed view of the petrous bone, bony labyrinth, internal auditory canal, and meatus. Synonym: Stenvers view. (05 Mar 2000) |
| step | 1. In dentistry, a dove-tailed or similarly shaped projection of a cavity prepared in a tooth into a surface perpendicular to the main part of the cavity for the purpose of preventing displacement of the restoration (filling) by the force of mastication. 2. A change in direction resembling a stair-step in a line, a surface, or the construction of a solid body. 3. To move the foot in walking; to advance or recede by raising and moving one of the feet to another resting place, or by moving both feet in succession. 4. A prefix used before father, mother, brother, sister, son, daughter, child, etc, to indicate that the person thus spoken of is not a blood relative, but is a relative by the marriage of a parent; as, a stepmother to X is the wife of the father of X, married by him after the death of the mother of X. See Stepchild, Stepdaughter, Stepson, etc. (11 Feb 2000) |
| stephanial | Pertaining to the stephanion. (05 Mar 2000) |
| stephanion | <anatomy> The point on the side of the skull where the temporal line, or upper edge of the temporal fossa, crosses the coronal suture. Origin: NL, from Gr. A crown. Source: Websters Dictionary (01 Mar 1998) |
| stephanite | <chemical> A sulphide of antimony and silver of an iron-black colour and metallic luster. Synonym: black silver, and brittle silver ore. Origin: So named after the Archduke Stephan, mining director of Austria. Source: Websters Dictionary (01 Mar 1998) |