| CF | calcaneal fibular [ligament]; calcium leucovorin; calf blood flow; calibration factor; cancer-free; ... |
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| CFDU | color-flow Doppler ultrasonography; color flow Doppler ultrasound |
| FEF50/FIF50 | ratio of expiratory flow to inspiratory flow at 50% of forced vital capacity |
| FMF | familial Mediterranean fever; fetal movement felt; flow microfluorometry; forced midexpiratory flow |
| LBF | Lactobacillus bulgaricus factor; limb blood flow; liver blood flow |
| needle culture | A culture produced by inserting an inoculating needle with inoculum down the centre of a solid medium contained in a test tube. Synonym: needle culture. (05 Mar 2000) |
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| needle-exchange programs | Organised services for exchange of sterile needles and syringes used for injections as a potential means of reducing the transmission of infectious diseases. (12 Dec 1998) |
| needle forceps | An instrument for grasping a needle in suturing. Synonym: needle forceps. (05 Mar 2000) |
| needle-holder | An instrument for grasping a needle in suturing. Synonym: needle forceps. (05 Mar 2000) |
| needle point tracing | A tracing of mandibular movements made by means of a device attached to the opposing arches; its shape resembles that of an arrowhead or a Gothic arch, and when the instrument's marking point is at the apex of the arch, the jaws are considered to be in centric relation. Synonym: arrow point tracing, Gothic arch tracing, Gothic arch, stylus tracing. (05 Mar 2000) |
| needle sharing | Usage of a single needle among two or more people for injecting drugs. Needle sharing is a high-risk behaviour for contracting infectious disease. (12 Dec 1998) |
| stereotactic needle biopsy | Biopsy done while breast is compressed under mammography. A series of pictures locate the lesion, and a radiologist enters information into a computer. The computer calculates information and positions a needle to remove the finding. A needle is inserted into the lump, and a piece of tissue is removed and sent to the lab for analysis. May be referred to as mammotest or core biopsy. (09 Oct 1997) |
| stop-needle | A surgical needle, with the eye at the tip, the shank of which has a projecting shelf to arrest the needle when it has passed the desired distance through the tissues. (05 Mar 2000) |
| newtonian flow | The type of flow characteristic of a newtonian fluid. (05 Mar 2000) |
| Deschamps needle | A needle with a long shaft for passing sutures in the deep tissues. (05 Mar 2000) |
| devil's darning-needle | <zoology> A dragon fly. See Darning needle, under Darn. Source: Websters Dictionary (01 Mar 1998) |
| Doppler colour flow | A computer-generated colour image produced by Doppler ultrasonography in which different directions of flow are represented by different hues. This technique is typically used to examine blood flow when evaluating heart disease. Where obstructions (for instance, arterial plaques) exist, blood flow will alter according to the principles of fluid mechanics. Eddies and reversals are readily apparent on the colour image. See: Doppler ultrasonography. (05 Mar 2000) |
| instream flow incremental methodology | Technique to predict the biomass of a fish species or life stage that a stream reach can support at a given flow, given knowledge of the fishes' physical habitat preferences. (09 Oct 1997) |
| isovolume pressure-flow curve | The relationship between transpulmonary pressure and respiratory air flow, expressed as a function of lung volume. (05 Mar 2000) |
| effective renal blood flow | The amount of blood flowing to the parts of the kidney that are involved with production of constituents of urine. (05 Mar 2000) |