| Frei-Hoffmann reaction | <investigation> A clinical test where dead disease-causing microbes are injected into the skin to see if this causes a skin reaction. It indicates whether the patient is infected with the the injected microbe and is not used commonly. (07 Apr 1998) |
|---|---|
| Freiberg infraction | <orthopaedics, radiology> Osteochondrosis of the metatarsal head, usually the 2nd, and less commonly in the 1st and 3rd, originally thought to be a form of aseptic necrosis, now thought to be an infarction or a stress fracture. It tends to occur in late adolescence, and the articular end becomes flattened (sometimes concave and irregular), small ossicles may form after healing, DJD is commonly a late complication (12 Dec 1998) |
| Freiberg's disease | <orthopaedics, radiology> Epiphysial ischemic (aseptic) necrosis of second metatarsal head. (05 Mar 2000) |
| Freiberg, Albert Henry | <person> U.S. Surgeon, 1869-1940. See: Freiberg's disease. (05 Mar 2000) |
| freieslebenite | <alchemy, historical> A sulphide of antimony, lead, and silver, occuring in monoclinic crystals. Origin: Named after the German chemist Freiesleben. (07 Apr 1998) |
| Frejka pillow splint | A pillow splint used for abduction and flexion of the femurs in treatment of congenital hip dysplasia or dislocation in infants. (05 Mar 2000) |
| Frejka, B | <person> 20th century Czech orthopedist. See: Frejka pillow splint. (05 Mar 2000) |
| fremissement cattaire | A low vibratory murmur. Synonym: fremissement cattaire. (05 Mar 2000) |
| fremitus | <clinical sign> A tremor vibration in any part of the body that is detectable by palpation. (07 Apr 1998) |
| frena | Plural of frenum. (05 Mar 2000) |
| frenal | Relating to any frenum. (05 Mar 2000) |
| french | Of or pertaining to France or its inhabitants. Origin: AS. Frencisc, LL. Franciscus, from L. Francus a Frank: cf. OF. Franceis, franchois, franois, F. Franais. Source: Websters Dictionary (01 Mar 1998) |
| French chalk | <chemical> A soft mineral of a soapy feel and a greenish, whitish, or grayish colour, usually occurring in foliated masses. It is hydrous silicate of magnesia. Steatite, or soapstone, is a compact granular variety. Indurated talc, an impure, slaty talc, with a nearly compact texture, and greater hardness than common talc. Synonym: talc slate. Origin: F. Talc; cf. Sp. & It. Talco, LL. Talcus; all fr. Ar. Talq. Source: Websters Dictionary (01 Mar 1998) |
| French flag problem | The French flag (tricolour) is used to illustrate a problem in the determination of pattern in a tissue, that of specifying three sharp bands of cells with discrete properties that do not have blurred edges using, for example: a gradient of a diffusible morphogen. (18 Nov 1997) |
| French flap | A rectangular flap raised in an elastic area, with its free end adjacent to a defect; the defect is covered by stretching the flap longitudinally until the end comes over it. Synonym: advancement flap, French flap. (05 Mar 2000) |