| spider pelvis | Narrow calices of renal pelvis. (05 Mar 2000) |
|---|---|
| spider's web | <zoology> The silken web which is formed by most kinds of spiders, particularly the web spun to entrap their prey. See Geometric spider, Triangle spider, under Geometric, and Triangle. Source: Websters Dictionary (01 Mar 1998) |
| spider telangiectasia | spider angioma |
| spider venoms | Venoms of arthropods of the order araneida of the arachnida. The venoms usually contain several protein fractions, including enzymes, haemolytic, neurolytic, and other toxins. (12 Dec 1998) |
| 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) |
| sea apple | <botany> The fruit of a West Indian palm (Manicaria Plukenetii), often found floating in the sea. Source: Websters Dictionary (01 Mar 1998) |
| sea arrow | <zoology> A squid of the genus Ommastrephes. See Squid. Source: Websters Dictionary (01 Mar 1998) |
| sea-bar | <zoology> A tern. Source: Websters Dictionary (01 Mar 1998) |