| Lb | pound force |
|---|---|
| lbf | pound force |
| lbf-ft | pound force foot |
| CF | calcaneal fibular [ligament]; calcium leucovorin; calf blood flow; calibration factor; cancer-free; ... |
| lb | libra; pound |
| USAF | Air Force |
|---|---|
| AFIP | Armed Force Institute of Pathology |
| AFM | Atomic Force Microscope |
| CF | Contractile force |
| DF | Developed force |
| pound force | (sometimes abbreviated lb(f)) A force which will accelerate one pound mass at a rate of 32.2 ft/second(2). (05 Dec 1998) |
|---|
| pound | 1. An inclosure, maintained by public authority, in which cattle or other animals are confined when taken in trespassing, or when going at large in violation of law; a pinfold. 2. A level stretch in a canal between locks. 3. A kind of net, having a large inclosure with a narrow entrance into which fish are directed by wings spreading outward. Pound covert, a pound that is close or covered over, as a shed. Pound overt, a pound that is open overhead. Origin: AS. Pund an inclosure: cf. Forpyndan to turn away, or to repress, also Icel. Pynda to extort, torment, Ir. Pont, pond, pound. Cf. Pinder, Pinfold, Pin to inclose, Pond. Origin: AS. Pund, fr. L. Pondo, akin to pondus a weight, pendere top weigh. See Pendant. 1. A certain specified weight; especially, a legal standard consisting of an established number of ounces. The pound in general use in the United States and in England is the pound avoirdupois, which is divided into sixteen ounces, and contains 7,000 grains. The pound troy is divided into twelve ounces, and contains 5,760 grains. 144 pounds avoirdupois are equal to 175 pounds troy weight. See Avoirdupois, and Troy. 2. A British denomination of money of account, equivalent to twenty shillings sterling, and equal in value to about $4.86. There is no coin known by this name, but the gold sovereign is of the same value. The pound sterling was in Saxon times, about A. D. 671, a pound troy of silver, and a shilling was its twentieth part; consequently the latter was three times as large as it is at present. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| pound of steam | One pound mass of water converted to steam. (05 Dec 1998) |
| foot-pound | <mechanics> A unit measure of energy expended, or work done, in raising a mass of 1 pound a height of 1 foot vertically against the force of gravity. (12 Sep 2002) |
| foot-pound-second | <unit> An absolute unit of the foot-pound-second system. (05 Mar 2000) |
| foot-pound-second system | <mechanics> A system of absolute units based on the foot, pound, and second. (05 Mar 2000) |
| accouchement force | Forced, artificially hastened delivery, by means of forceps, version, etc.; originally applied to rapid dilation of the cervix with the hands, with version and forcible extraction of the foetus. (05 Mar 2000) |
| anterior component of force | A force operating to move teeth anteriorly. (05 Mar 2000) |
| Begg light wire differential force technique | An orthodontic appliance utilizing small gauge labial wires with expansion and contraction loops formed into it and attached to bands fitted to individual teeth; sometimes called Begg light wire differential force technique. (05 Mar 2000) |
| bite force | The force applied by the masticatory muscles in dental occlusion. (12 Dec 1998) |
| brisement force | Forcible manipulation, usually under anaesthesia, in which the position of a deformed limb is corrected by tearing the soft tissue and crushing the bone, as in a once popular but no longer used correction for club foot deformities. Origin: Fr. Forcible breaking (05 Mar 2000) |
| radial ponderomotive force stabilisation | <radiobiology> In magnetic mirror devices, use of rf waves in the neighborhood of the ion cyclotron frequency to stabilise interchange modes. The radial ponderomotive force produced by a radial gradient in the applied rf electric field opposes the destabilising centrifugal force resulting from bad magnetic field curvature. The net particle current is in the direction that would result from field lines with good curvature, eliminating the drive for the interchange instability. (09 Oct 1997) |
| G force | Inertial force produced by accelerations or gravity, expressed in gravitational units; one G is equal to the pull of gravity at the earth's surface at sea level and 45 |
| masticatory force | The motive force created by the dynamic action of the muscles during the physiologic act of mastication. Synonym: biting strength, masticatory force. (05 Mar 2000) |
| redressement force | Straightening by force of a deformed part, as of knock-knee. Origin: Fr. (05 Mar 2000) |
| centering force | <physics, radiobiology> Term for the mutual attraction between the parallel currents in the inboard leg of the toroidal field coils in a toroidal magnetic fusion system. The portion of the coil running through the doughnut hole is attracted towards the centre of the hole. (13 Nov 1997) |
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