| SI | <abbreviation> International System of Units (Systeme International d'Unites). Symbol for silicon. (05 Mar 2000) |
|---|---|
| si op. sit | <abbreviation> L. Si opus sit, if needed. (05 Mar 2000) |
| SI unit | <chemistry, physics> An International System of Units of measurement in which the fundamental units are standardised. Examples include: metre, kilometre, ampere, gray, joule, Sievert, Becquerel. Origin: Fr. Le Systeme International d'Unites (18 Nov 1997) |
| SI units | See: base units, International System of Units. (05 Mar 2000) |
| Sia | <abbreviation> Sialic acids. (05 Mar 2000) |
| Sia(alpha2,3)Gal(beta1,4)GlcNAc alpha-2,8-sialyltransferase | <enzyme> An alpha-2,8-sialyltransferase that exhibits activity toward the sia(alpha2,3)gal(beta1,4)glcnac sequences of n-linked oligosaccharides; involved in brain development; amino acid sequence given in first source Registry number: EC 2.4.99.- Synonym: st8sia III (26 Jun 1999) |
| SIADH | <endocrinology, syndrome> Inappropriate antidiuretic hormone secretion produces a disorder of fluid and electrolyte balance which results in the inability to excrete dilute urine. Inappropriate antidiuretic hormone secretion is seen in association with certain cancers (for example oat cell lung cancer, pancreatic, prostate, Hodgkin's disease), central nervous system disorders, head injury, myxoedema, psychosis and certain drugs. Symptoms include weight gain, nausea, vomiting, muscle cramps, confusion and convulsions. Incidence: approximately 1 in 100,000. Acronym: SIADH (18 Nov 1997) |
| siaga | <zoology> The ahu, or jairou. Source: Websters Dictionary (01 Mar 1998) |
| sial- | See: sialo-. (05 Mar 2000) |
| sialaden | A salivary gland. Origin: sial-+ G. Aden, gland (05 Mar 2000) |
| sialadenitis | Inflammation of a salivary gland. Synonym: sialoadenitis. Origin: sial-+ G. Aden, gland, + -itis, inflammation (05 Mar 2000) |
| sialadenoncus | Old term for a neoplasm of salivary tissue. Origin: sial-+ G. Aden, gland, + onkos, bulk (tumour) (05 Mar 2000) |
| sialadenotropic | Having an influence on the salivary glands. Origin: sial-+ G. Aden, gland, + trope, a turning (05 Mar 2000) |
| sialagogue | 1. Promoting the flow of saliva. 2. An agent having this action (e.g., anticholinesterase agents). Synonym: ptyalagogue, sialogogue. Origin: sial-+ G. Agogos, drawing forth (05 Mar 2000) |
| sialate 9-O-lactoyltransferase | <enzyme> Catalyses the lactoylization of n-acetylneuraminic acid Registry number: EC 2.3.1.- (26 Jun 1999) |