| free graft | A graft transplanted without its normal attachments, or a pedicle, from one site to another. (05 Mar 2000) |
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| free induction decay | In magnetic resonance imaging, the decay curve that is detected by the radiofrequency coil after the application of an excitation pulse, without additional pulses (free). (05 Mar 2000) |
| free macrophage | An actively motile macrophage typically found in sites of inflammation. (05 Mar 2000) |
| free mandibular movements | Any mandibular movement's made without tooth interference, any uninhibited movement's of the mandible. (05 Mar 2000) |
| free margin | Unattached edge of a sturcture, often opposite the attached edge. See: free border of nail, free border of ovary. Synonym: margo liber, free margin. (05 Mar 2000) |
| free margin of eyelids | The unattached inferior edge of the upper lid and superior edge of the lower lid, where the anterior (cutaneous) surface of the eyelid meets the posterior (conjunctival) surface of the eyelid. The free margins of the eyelids bound the rima palpebrarum, and each free margin has an anterior and posterior border. See: borders of eyelids. (05 Mar 2000) |
| free nerve endings | A form of peripheral ending of sensory nerve fibres in which the terminal filaments end freely in the tissue. Synonym: terminationes nervorum liberae. (05 Mar 2000) |
| free radical | A chemically active atom or molecular fragment containing a chemical charge due to an excess or deficient number of electrons. Radicals seek to receive or release electrons in order to achieve a more stable configuration, a process that can damage the large molecules within cells. See: Oxidation. (09 Oct 1997) |
| free radical reductase | <enzyme> Catalyses conversion of carbon-centreed lipid radicals into an inactive species by utilizing vitamin e at one end and glutathione at the other Registry number: EC 1.8.4.- (26 Jun 1999) |
| free radical scavengers | Substances that influence the course of a chemical reaction by ready combination with free radicals. Among other effects, this combining activity protects pancreatic islets against damage by cytokines and prevents myocardial and pulmonary perfusion injuries. (12 Dec 1998) |
| free radicals | Highly reactive molecules with an unsatisfied electron valence pair. Free radicals are produced in both normal and pathological processes. They are proven or suspected agents of tissue damage in a wide variety of circumstances including radiation, damage from environment chemicals, and aging. Natural and pharmacological prevention of free radical damage is being actively investigated. (12 Dec 1998) |
| free tenia | See: teniae coli. Synonym: tenia libera. (05 Mar 2000) |
| free thyroxine index | An arbitrary value obtained by multiplying the triiodothyronine uptake by the serum thyroxine concentration; it largely corrects for variations in thyroid-bound globulin concentration by providing a clinically valid estimate of the physiologically active free thyroxine; direct assay or laboratory measurement of free serum thyroxine yields a more accurate value. (05 Mar 2000) |
| free villus | A chorionic villus that is not attached to the decidua basalis, but is "free" in the maternal blood of the intervillous spaces. Synonym: floating villus. (05 Mar 2000) |
| free water | Water in the body that can be removed by ultrafiltration and in which substances can be dissolved. (05 Mar 2000) |
Synonyms : Frizzled Proteins, Frizzled Receptor, Receptor, Frizzled, Receptors, Frizzled
Synonyms : Bone, Frontal, Bones, Frontal, Frontal Bones
Synonyms : Area, Broca, Frontal Lobes, Lobe, Frontal, Lobes, Frontal
Synonyms : Sinus, Frontal
Synonyms : Frontal Sinusitides, Sinusitides, Frontal
| frontal sinus |
one of a pair of cavities in the frontal bone
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| frontal suture |
the suture between two halves of the frontal bone (usually obliterated by the age of 6)
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| fruit fly |
any of numerous small insects whose larvae feed on fruits
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| frost |
ice crystals forming a white deposit (especially on objects outside) decorate with frosting; "frost a cake" freeze: weather cold enough to cause freezing provide with a rough or speckled surface or appearance; "frost the glass"; "she frosts her hair" the formation of frost or ice on a surface cover with frost; "ice crystals frosted the glass" damage by frost; "The icy precipitation frosted the flowers and they turned brown" United States poet famous for his lyrical poems on country life in New England (1874-1963)
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| Francisella tularensis |
the type species of the genus Francisella and the causal agent of tularemia in humans; can be used as a bioweapon
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| FR | English biochemist who (with Watson in 1953) helped discover the helical structure of DNA (born in 1916) |
|---|---|
| FR | English explorer and admiral who was the first Englishman to circumnavigate the globe and who helped to defeat the Spanish Armada (1540-1596) |
| FR | United States inventor who built a steam-powered automobile (1849-1918) |
| FR | United States social reformer who proposed an old-age pension sponsored by the federal government |
| FR | Archduke of Austria and heir apparent to Francis Joseph I |
| FR | United States filmmaker (born in 1939) |
| FR | English scientist (cousin of Charles Darwin) who explored many fields: heredity, meteorology, statistics, psychology, anthropology |
| FR | English biochemist who (with Watson in 1953) helped discover the helical structure of DNA (born in 1916) |
| FR | American Revolutionary patriot and leader |
| FR | the last Holy Roman Emperor (1768-1835) |
| FR | Emperor of Austria and King of Hungary |
| FR | Emperor of Austria and King of Hungary |