| RI | radiation intensity; radioactive isotope; radioimmunology; recession index; recombinant inbred [stra... |
|---|---|
| SI | International System of Units [Fr. le Systeme International d'Unites]; sacroiliac; saline infusion; ... |
| SF | Sabin-Feldman [test]; safety factor; salt-free; scarlet fever; screen film; seminal fluid; serosal f... |
| AF | abnormal frequency; acid-fast; adult female; afebrile; aflatoxin; albumin-free; albumose-free; aldeh... |
| AI | accidental injury; accidentally incurred; adiposity index; aggregation index; allergy and immunology... |
| amniotic sac | <anatomy, obstetrics> Sac, enclosing the embryo of amniote vertebrates, that provides a fluid environment to prevent dehydration during development of land based animals. See: amnion. (18 Nov 1997) |
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| allantoic fluid | The fluid within the allantoic cavity. (05 Mar 2000) |
| ascitic fluid | The serous fluid which accumulates in the peritoneal cavity in ascites. (12 Dec 1998) |
| blood-cerebrospinal fluid barrier | A barrier located at the tight junctions which surround and connect the cuboidal epithelial cells on the surface of the choroid plexus; capillaries and connective tissue stroma of the choroid do not represent a barrier to protein tracers or dyes. (05 Mar 2000) |
| body fluid compartments | The two phases between which water and other body fluids are distributed: extracellular and intracellular. (12 Dec 1998) |
| Brodie fluid | An aqueous salt solution used in manometers designed for testing gas evolution or uptake, as in cell respiration. (05 Mar 2000) |
| bronchoalveolar lavage fluid | Fluid obtained by washout of the alveolar compartment of the lung. It is used to assess biochemical and inflammatory changes in and effects of therapy on the interstitial lung tissue. (12 Dec 1998) |
| Callison's fluid | A diluting fluid for counting red blood cells, consisting of 1 ml of Loeffler's alkaline methylene blue, 1 ml of formalin, 10 ml of glycerol, 1 g of neutral ammonium oxalate, and 2.5 g of sodium chloride added to 90 ml of distilled water, mixed well, and permitted to stand until the solids are dissolved and the reagent is clear; the preparation is filtered prior to use. (05 Mar 2000) |
| ventricular fluid | The portion of the cerebrospinal fluid that is contained in the ventricles of the brain. (05 Mar 2000) |
| gingival crevicular fluid | A fluid occurring in minute amounts in the gingival crevice, believed by some authorities to be an inflammatory exudate and by others to cleanse material from the crevice, containing sticky plasma proteins which improve adhesions of the epithelial attachment, have antimicrobial properties, and exert antibody activity. (12 Dec 1998) |
| gingival fluid | Fluid containing plasma proteins, which is present in increasing amounts in association with gingival inflammation. Synonym: crevicular fluid, sulcular fluid. (05 Mar 2000) |
| Rees-Ecker fluid | An aqueous solution of sodium citrate, sucrose, and brilliant cresyl blue used in platelet counts. (05 Mar 2000) |
| cerebrospinal fluid | <neurology> A clear, colourless fluid that contains small quantities of glucose and protein. Cerebrospinal fluid fills the ventricles of the brain and the central canal of the spinal cord. Analysis of the cerebrospinal fluid can be accomplished using lumbar puncture. The presence of white blood cells or bacteria within the cerebrospinal fluid can indicate a bacterial infection (meningitis). Acronym: CSF (12 Jan 1998) |
| cerebrospinal fluid pressure | Manometric pressure of the cerebrospinal fluid as measured by lumbar, cerebroventricular, or cisternal puncture. Within the cranial cavity it is called intracranial pressure. (12 Dec 1998) |
| cerebrospinal fluid proteins | Proteins in the cerebrospinal fluid, normally albumin and globulin present in the ratio of 8 to 1. Increases in protein levels are of diagnostic value in neurological diseases. (brain and bannister's clinical neurology, 7th ed, p221) (12 Dec 1998) |