S
chemical symbol, sulfur; symbol for siemens and svedberg; [L.] semis (half); sight; [L.] signa (mark); [L.] sinister (left).
S phase see cell cycle.
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s.c.
in medical records, an abbreviation for subcutaneous.
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S1-mapping
a method for mapping precursor or mature mRNA to particular DNA sequences using the enzyme S1-nuclease.
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S1S2S3 pattern
an electrocardiographic abnormality in which S waves are present in leads I, II and III. It is associated with right ventricular enlargement involving the base of the heart or the ventricular outflow tract.
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SA node
see sinoatrial.
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S-A, SA
sinoatrial.
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Saanen
a breed of all-white, although cream is acceptable, dairy goat with prick ears and always polled.
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Sabin–Feldmann dye test
a test which detects serum antibody against Toxoplasma gondii. In the presence of antibodies, live organisms are not stained with methylene blue. Called also methylene blue dye binding test.
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sable
1. a coat color pattern with black-tipped hairs on a light background. Seen in the German shepherd dog. 2. breed of fur rabbit that is dark sepia with paler underside in a dense, soft coat. There are two varieties, Siamese and Marten, the latter having white markings on the belly and legs.
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Sabouraud’s dextrose agar
see Sabouraud’s dextrose agar.
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