| FAI | first aid instruction; free androgen index; functional aerobic impairment; functional assessment inv... |
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| FRC | Federal Radiation Council; frozen red cells; functional reserve capacity; functional residual capaci... |
| LOC | Loss Of Consciousness |
| ABCDES | abnormal alignment, bones-periarticular osteoporosis, cartilage-joint space loss, deformities, margi... |
| ABL | abetalipoproteinemia; acceptable blood loss; African Burkitt lymphoma; Albright-Butler-Lightwood [sy... |
| hair loss | Hair loss may be associated with aging, hormones (androgens) or genetic predisposition. The pattern of baldness in women is different from that of men. In women there is thinning of the hair all over the scalp, but the frontal hairline is maintained. The hair loss is usually permanent. Treatment has been successful with topical minoxidil in some cases. (13 Nov 1997) |
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| drift cyclotron loss cone instabilities | (DCLC) This is an electrostatic microinstability (frequencies at harmonics of the ion cyclotron frequency) which is of major concern in small mirror devices. Mode is driven by radial gradients in the electron density, and causes loss of ions due to non-conservation of magnetic moment (see adiabatic invariant) as they interact with the mode, and are dispersed in velocity space into the loss cone. Stabilisation is accomplished by increasing the plasma size and by partially filling the loss cone with a continuous extermal warm plasma stream. (09 Oct 1997) |
| eddy-current loss | <radiobiology> Energy loss due to eddy currents circulating in a resistive material. (09 Oct 1997) |
| tooth loss | The failure to retain teeth as a result of disease or injury. (12 Dec 1998) |
| loss cone | In a magnetic mirror machine, particles with a large velocity parallel to the magneitc field and a small velocity perpendicular to the field will be able to escape past the magnetic mirror (see magnetic mirror). In that case the velocity distribution function (see distribution function) will be almost zero in the region of velocity space that allows particles to escape. The shape of that region (in a velocity space diagram with parallel velocity and perpendicular velocity as the axes) is a cone. When a particle undergoes a collision, its velocity gets somewhat randomised. Particles that are scattered into that cone are lost very quickly (in one mirror bounce time). Thus it is called a loss cone. Because of the loss cone, the theoretical maximum particle confinement time of a magnetic mirror machine can be only a few times the particle collision time, this is generally seen as a showstopper for mirror-based fusion research. (09 Oct 1997) |
| loss of consciousness | Total unresponsiveness. An important neurologic sign. (27 Sep 1997) |
| loss of heterozygosity | Refers to a mutation that results in the loss of allelic uniqueness, which is often defined as a greater than or equal to 40 percent increase in signal intensity of allelic signal. Loss of heterozygosity is most frequently identified in certain chromosome regions, including 5q, 17p, and 18q. (12 Dec 1998) |
| orthodontic appliances, functional | Loose, usually removable intra-oral devices which alter the muscle forces against the teeth and craniofacial skeleton. These are dynamic appliances which depend on altered neuromuscular action to effect bony growth and occlusal development. They are usually used in mixed dentition to treat paediatric malocclusions. (ada, 1992) (12 Dec 1998) |
| functional | 1. Pertaining to, or connected with, a function or duty; official. 2. <physiology> Pertaining to the function of an organ or part, or to the functions in general. <medicine> Functional disease, a disease of which the symptoms cannot be referred to any appreciable lesion or change of structure; the derangement of an organ arising from a cause, often unknown, external to itself opposed to organic disease, in which the organ itself is affected. Source: Websters Dictionary (01 Mar 1998) |
| functional albuminuria | A collective term denoting types of benign albuminuria that are associated with physical exertion or other conditions in which there are physiologic changes such as during pregnancy or adolescence. Synonym: physiologic albuminuria. (05 Mar 2000) |
| functional anatomy | Anatomy studied in its relation to function. Synonym: morphophysiology, physiological anatomy. (05 Mar 2000) |
| functional aphasia | Nonorganic aphasia related to conversion hysteria. (05 Mar 2000) |
| functional apoplexy | A condition simulating apoplexy without any cerebral lesion; a form of conversion hysteria. (05 Mar 2000) |
| functional blindness | Apparent loss of vision related to suggestibility. (05 Mar 2000) |
| functional cardiovascular disease | A euphemism for cardiovascular symptoms deemed to be psychogenic. More generally, sometimes used for abnormal cardiac function. (05 Mar 2000) |