| EF | ectopic focus; edema factor; ejection fraction; elastic fibril; electric field; elongation factor; e... |
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| FF | degree of fineness of abrasive particles; fat-free; father factor; fecal frequency; fertility factor... |
| GIDAANT | Gender Identity Disorder of Adolescence or Adulthood, Non-transsexual Type |
| GBD | gallbladder disease; gender behavior disorder; glass blower's disease; granulomatous bowel disease |
| GEN | gender; generation |
| FGD | Focus Group Discussions |
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| MCF | Mink cell focus-inducing |
| RFFIT | Rapid Fluorescent Focus Inhibition Test |
| SFFV | Spleen Focus Forming virus |
| ACF | aberrant crypt focus |
| gender | 1. Kind; sort. "One gender of herbs." 2. Sex, male or female. 3. A classification of nouns, primarily according to sex; and secondarily according to some fancied or imputed quality associated with sex. "Gender is a grammatical distinction and applies to words only. Sex is natural distinction and applies to living objects." (R. Morris) Adjectives and pronouns are said to vary in gender when the form is varied according to the gender of the words to which they refer. Origin: OF. Genre, gendre (with excrescent d), F.genre, fr. L. Genus, generis, birth, descent, race, kind, gender, fr. The root of genere, gignere, to beget, in pass, to be born, akin to E. Kin. See Kin, and cf. Generate, Genre, Gentle, Genus. Source: Websters Dictionary (01 Mar 1998) |
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| gender dysphoria syndrome | <syndrome> A syndrome in which an individual experiences marked personal stress due to feelings that despite having the genitalia and secondary sexual characteristics of one gender there is a sense of compatibility and greater belonging to the other gender class; one may undergo surgery to reconstruct anatomy to that of the other gender. (05 Mar 2000) |
| gender identity | A person's concept of himself as being male and masculine or female and feminine, or ambivalent, usually based on the physical characteristics, parental attitudes and expectations, and psychological and social pressures to which the individual is subjected. It is the private experience of gender role. (12 Dec 1998) |
| gender identity disorders | A class of mental disorders characterised by an incongruity between an assigned culturally determined set of attitudes, behaviour patterns, and physical characteristics associated with masculinity or femininity and gender identity. See: transsexualism. (05 Mar 2000) |
| gender role | The sex of a child assigned by a parent; when opposite to the child's anatomical sex (e.g., due to genital ambiguity at birth or to the parents' strong wish for a child of the opposite sex), the basis is set for postpubertal dysfunctions. See: sex role, sex reversal. (05 Mar 2000) |
| sexual and gender disorders | Mental disorders related to sexual dysfunction, paraphillias, and gender identity disorders. (12 Dec 1998) |
| real focus | The point of meeting of convergent rays. (05 Mar 2000) |
| Ghon's focus | Calcification seen in pulmonary parenchyma (usually mid-lung area) and hilar nodes resulting from earlier, usually childhood, infection with tuberculosis. Synonym: Ghon's complex, Ghon's focus, Ghon's primary lesion. (05 Mar 2000) |
| virtual focus | The point from which divergent rays seem to proceed, or that at which they would meet if prolonged backward. (05 Mar 2000) |
| mink cell focus-inducing viruses | Murine leukaemia viruses discovered in 1976 by hartley, wolford, old, and rowe and so named because the viruses originally isolated had the capacity to transform cell foci in mink cell cultures. Mcf viruses are generated in a multi-step process by recombination with other viral types including akr, friend, moloney, and rauscher. (12 Dec 1998) |
| plasma focus | <radiobiology> The Plasma Focus is another device which depends on the pinch effect. Possible applications include both fusion and plasma propulsion, as well as other plasma research. In essence the plasma focus is generated by discharge of a current across the ends of two coaxial insulated conducting pipes. The Plasma Focus caused a huge stir when they generated copious neutrons, until it was discovered that the source of the neutrons was knockoffs from deuterium due to pinch accelerated electrons or ions. Plasma focus is sort of a point version of the Zpinch. (09 Oct 1997) |
| condenser, variable-focus | <microscopy> Essentially an Abbe condenser in which the upper lens element is fixed and the lower movable. The lower lens may be used to focus the illumination between the elements so that it emerges from the stationary lens as a large diameter parallel bundle. The field of low-power objectives may thus be filled without removing the top element. at the opposite extreme it can be adjusted to have a numerical aperture as high as 1.3. See: illumination, critical. (05 Aug 1998) |
| principal focus | The real or virtual meeting point of rays passing into a lens parallel to its axis. (05 Mar 2000) |
| spleen focus-forming viruses | Murine leukaemia viruses that are replication-defective and rapidly transforming. The envelope gene plays an essential role in initiating erythroleukaemia, manifested by splenic foci, splenomegaly, and polycythemia. Spleen focus-forming viruses are generated by recombination with other viral types including friend p (polycythemia), friend a (anaemia), rauscher, and cas (from wild mice at lake casita, california). (12 Dec 1998) |
| natural focus of infection | An ecosystem in which an infectious agent normally persists in nature; e.g., yellow fever virus in a jungle monkey-Haemagogus mosquito ecosystem. (05 Mar 2000) |
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