| SCT | secretin; sex chromatin test; sexual compatibility test; sickle-cell trait; sperm cytotoxicity; spin... |
|---|---|
| SCTAT | sex cord tumor with annular tubules |
| SH | Salter-Harris [fracture]; Schonlein-Henoch [purpura]; self-help; serum hepatitis; sexual harassment;... |
| SHBG | sex hormone binding globulin |
| SI | International System of Units [Fr. le Systeme International d'Unites]; sacroiliac; saline infusion; ... |
| sex disorders | Disturbances in normal sexual performance. (12 Dec 1998) |
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| sex distribution | The number of males and females in a given population. The distribution may refer to how many men or women or what proportion of either in the group. The population is usually patients with a specific disease but the concept is not restricted to humans and is not restricted to medicine. (12 Dec 1998) |
| sex duction | f duction Previous: sex differentiation disorders, sexdigitate, sex disorders, sex distributionNext: sex duction, sexed, sex education, sex factor, sex factors, sex hormonesex duction <molecular biology> The transfer of genes from one bacterium to another by the process of conjugation. May involve one bacterium with an F' plasmid, in which case the process is called f duction. (14 Oct 1997) |
| sex education | Education which increases the knowledge of the functional, structural, and behavioural aspects of human reproduction. (12 Dec 1998) |
| sex factor | The prototype conjugative plasmid associated with conjugation in the K-12 strain of Escherichia coli. Synonym: F agent, F-factor, F genote, F-genote, fertility agent, fertility factor, sex factor. (05 Mar 2000) |
| sex factors | Maleness or femaleness as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or effect of a circumstance. It is used with human or animal concepts but should be differentiated from sex characteristics, anatomical or physiological manifestations of sex, and from sex distribution, the number of males and females in given circumstances. (12 Dec 1998) |
| sex hormone | <endocrinology> Hormone that is secreted by gonads or that influences gonadal development. Examples are oestrogen, testosterone, gonadotrophins. (18 Nov 1997) |
| sex hormone-binding globulin | A glycoprotein migrating as a beta-globulin. Its molecular weight, 52,000 or 95,000-115,000, indicates that it exists as a dimer. The protein binds testosterone, dihydrotestosterone, and estradiol in the plasma. Changes in its concentration significantly affect the ratio of unbound (biologically active) testosterone to estradiol in plasma. (12 Dec 1998) |
| sex hormones | Hormones having oestrogenic (female sex hormones) or androgenic (male sex hormones) activity. (12 Dec 1998) |
| sex-influenced | Denoting a class of genetic disorders in which the same genotype has differing manifestations in the two sexes; the variation may be rational (e.g., breast cancer occurs less frequently in males) or have only empirical support (e.g., pattern baldness behaves as a dominant trait in the male and as a recessive trait in the female). See: sex-influenced inheritance. (05 Mar 2000) |
| sex-influenced esterase | <enzyme> Sex hormone-dependent enzyme; liver enzyme may be a precursor of sex-influenced esterase Registry number: EC 3.1.1.- Synonym: es-si esterase, liver sex-influenced esterase (26 Jun 1999) |
| sex-influenced inheritance | Inheritance that is autosomal but has a different intensity of xpression in the two sexes, e.g., male pattern baldness. (05 Mar 2000) |
| sex-limited | Occurring in one sex only. See: sex-limited inheritance. (05 Mar 2000) |
| sex-limited inheritance | Inheritance of a trait that can be expressed in one sex only, e.g., testicular feminization. (05 Mar 2000) |
| sex-linked | <genetics> A genetic disorder where the genetic defect is linked to one of the chromosomes that determines sex (x or y). This is usually due to a gene on the unpaired portion of the X chromosome. Recessive X linked alleles are fully expressed in the heterogametic sex because they can have only one copy of the gene. Thus X linked mutant disorders are more common in human males than in females. An example is haemophilia, which is autosomal recessive and linked to the X chromosome, so only males (XY) actually manifest the disease. (06 Oct 1997) |