| seiches | <geology> Local oscillations in level observed in the case of some lakes, as Lake Geneva. Origin: F. Source: Websters Dictionary (01 Mar 1998) |
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| Seidel | Erich, German ophthalmologist, 1882-1946. See: Seidel's scotoma, Seidel's sign. (05 Mar 2000) |
| Seidel's scotoma | A form of Bjerrum's scotoma. See: Seidel's sign. (05 Mar 2000) |
| Seidel's sign | <clinical sign> A sickle-shaped scotoma appearing as an upward or downward extension of the blind spot. (05 Mar 2000) |
| seidlitz | Of or pertaining to Seidlitz, a village in Bohemia. Alternative forms: Sedlitz] Seidlitz powders, effervescing salts, consisting of two separate powders, one of which contains forty grains of sodium bicarbonate mixed with two drachms of Rochell salt (tartrate of potassium and sodium) and the other contains thirty-five grains of tartaric acid. The powders are mixed in water, and drunk while effervescing, as a mild cathartic; so called from the resemblance to the natural water of Seidlitz. Called also Rochelle powders. Seidlitz water, a natural water from Seidlitz, containing magnesium, sodium, calcium, and potassium sulphates, with calcium carbonate and a little magnesium chloride. It is used as an aperient. Source: Websters Dictionary (01 Mar 1998) |
| Seidlitz mixture | A mixture of 3 parts Rochelle salt and 1 part sodium bicarbonate. Ten grams of the mixture are employed with 2.17 g tartaric acid for one Seidlitz powder. The powder, which effervesces when placed in water, was widely used as a cathartic. (05 Mar 2000) |
| Seignette's salt | KNaC4H4O6;a mild saline cathartic, used as an ingredient in compound effervescent powders. Synonym: Rochelle salt, Seignette's salt, sodium potassium tartrate. (05 Mar 2000) |
| Seignette, Pierre | <person> French apothecary, 1660-1719. See: Seignette's salt. (05 Mar 2000) |
| Seiler's cartilage | A small rod of cartilage attached to the vocal process of the arytenoid cartilage. (05 Mar 2000) |
| Seiler, Carl | <person> Swiss laryngologist and anatomist in U.S., 1849-1905. See: Seiler's cartilage. (05 Mar 2000) |
| seine | A large net, one edge of which is provided with sinkers, and the other with floats. It hangs vertically in the water, and when its ends are brought together or drawn ashore incloses the fish. Seine boat, a boat specially constructed to carry and pay out a seine. Origin: F. Seine, or AS. Segene, bth fr. L. Sagena, Gr. Source: Websters Dictionary (01 Mar 1998) |
| seiner | One who fishes with a seine. Source: Websters Dictionary (01 Mar 1998) |
| Seip | Martin, 20th century Scandinavian physician. See: Lawrence-Seip syndrome. (05 Mar 2000) |
| seir model | <epidemiology> A class of compartmental prevalence models, with compartments Susceptible, Latent (Exposed), Infectious and Recovered. Takes its name from a common notation. In the notation used in the course, this would be an XHYZ model. Many permutations possible. (05 Dec 1998) |
| seirfish | <zoology> Same as Seerfish. Source: Websters Dictionary (01 Mar 1998) |