tangential view
| Waters' view | A PA radiographic view of the skull made with the orbitomeatal line at an angle of 37 |
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| Waters' view radiograph | A radiographic frontal view of the maxillary sinuses, orbits, nasal structures and zygomas; permits direct comparison of the sides. Synonym: Waters' view radiograph. (05 Mar 2000) |
| half axial view | Reverse tilted AP radiographic projection devised to permit demonstration of the entire occipital bone, foramen magnum, and dorsum sellae, as well as the petrous ridges. Synonym: half axial view, half-axial projection, Towne 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) |
| Towne view | Reverse tilted AP radiographic projection devised to permit demonstration of the entire occipital bone, foramen magnum, and dorsum sellae, as well as the petrous ridges. Synonym: half axial view, half-axial projection, Towne view. (05 Mar 2000) |
| field of view | <microscopy> The extent of the visible image field that can be seen. (05 Aug 1998) |
| long axis view | In echocardiography, a projection parallel to the interventricular septum of the heart; four-chamber view. (05 Mar 2000) |
| mean sea level | <marine biology> A tidal datum: the arithmetic mean of hourly water elevations observed over a specific 19-year cycle. Points on land can be referenced to a mean sea level, in which case the datum assumes zero elevation. (09 Oct 1997) |
| San Miguel sea lion virus | A calicivirus, family Caliciviridae, first isolated from sea lions on San Miguel island off the California coast, which is indistinguishable from the vesicular exanthema of swine virus both biophysically and clinically in terms of the vesicular disease syndrome that it produces in swine. (05 Mar 2000) |
| sea | <oncogene> An oncogene, identified in bird sarcoma, encoding a receptor tyrosine kinase. (18 Nov 1997) |
| sea acorn | <zoology> An acorn barnacle (Balanus). Source: Websters Dictionary (01 Mar 1998) |
| sea adder | <zoology> The European fifteen-spined stickleback (Gasterosteus spinachia); called also bismore. The European tanglefish, or pipefish (Syngnathus acus). Source: Websters Dictionary (01 Mar 1998) |
| sea amenone | <zoology> Any one of numerous species of soft-bodied Anthozoa, belonging to the order Actrinaria; an actinian. They have the oral disk surrounded by one or more circles of simple tapering tentacles, which are often very numerous, and when expanded somewhat resemble the petals of flowers, with colours varied and often very beautiful. Source: Websters Dictionary (01 Mar 1998) |
| sea anemones | Numerous almost invariably solitary polyps of the order actiniaria. (12 Dec 1998) |
| sea ape | <zoology> The thrasher shark. The sea otter. Source: Websters Dictionary (01 Mar 1998) |