| MCV | mean cell volume; mean clinical value; mean corpuscular volume; median cell volume; motor conduction... |
|---|---|
| LF | labile factor; lactoferrin; laryngofissure; Lassa fever; latex fixation; left foot; left forearm; le... |
| LFD | lactose-free diet; large for date [fetus]; late fetal death; lateral facial dysplasia; least fatal d... |
| LFT | latex fixation test; latex flocculation test; left fronto-transverse [fetal position]; liver functio... |
| SW | seriously wounded; short waves; sinewave; slow wave; soap and water; social worker; spike wave; spir... |
| mean foundation plane | The mean of the various irregularities in form and inclination of the basal seat; the ideal condition for denture stability exists when the mean foundation plane is most nearly at right angles to the direction of force. (05 Mar 2000) |
|---|---|
| mean free path | <radiobiology> Average distance a particle travels between occurrences of the given event, for example, between collisions. For collisions, the mean free path is roughly equal to unity divided by the product of the collision cross-section times the particle density. (09 Oct 1997) |
| mean manifest vector | A single cardiac vector representing the average of all vector's present during a given time interval. Synonym: mean manifest vector. (05 Mar 2000) |
| mean sea level | <marine biology> A tidal datum: the arithmetic mean of hourly water elevations observed over a specific 19-year cycle. Points on land can be referenced to a mean sea level, in which case the datum assumes zero elevation. (09 Oct 1997) |
| mean temperature | The average atmospheric temperature in any locality for a designated period of time, as a month or a year. (05 Mar 2000) |
| mean vector | A single cardiac vector representing the average of all vector's present during a given time interval. Synonym: mean manifest vector. (05 Mar 2000) |
| regression of the mean | If, for a symmetrical population with a single mode, a measurement, selected because it is extreme, is repeated, on average the second reading will be closer to the mean than the first. (05 Mar 2000) |
| harmonic mean | The mean calculated as the number of values being averaged, divided by the sum of their reciprocals. (05 Mar 2000) |
| hypothetical mean organism | A hypothetical organism whose characters are the means of the positive characters of the organisms which belong to the same taxon as the HMO, as opposed to the calculated mean organism. (05 Mar 2000) |
| hypothetical mean strain | A hypothetical strain that possesses the characteristics of a calculated mean organism. (05 Mar 2000) |
| standard error of the mean | A statistical index of the probability that a given sample mean is representative of the mean of the population from which the sample was drawn. (05 Mar 2000) |
| law of regression to mean | In a population mating at random, the progeny of a parent with an extreme value for a measurable phenotype will tend on average to have values nearer the population mean than in the extreme parent. See: law of regression to mean. Synonym: law of regression to mean. (05 Mar 2000) |
| back pain, low | Symptoms in the low back can relate to the bony lumbar spine, discs between the vertebrae, ligaments around the spine and discs, spinal cord and nerves, muscles of the low back, internal organs of the pelvis and abdomen, and the skin covering the lumbar area. The low back, or lumbar area, functions in structural support, movement, and protection of certain body tissue. (12 Dec 1998) |
| blood sugar, low | The sugar here is glucose. Low blood glucose constitutes hypoglycaemia. Hypoglycaemia is only significant when it is associated with symptoms. It has many causes including drugs, liver disease, surgical absence of the stomach, pre-diabetes, and rare tumours that release excess insulin. (12 Dec 1998) |
| cardiac output, low | A state of subnormal or depressed cardiac output, usually seen in patients with heart failure secondary to coronary artery, hypertensive, primary myocardial, valvular, or pericardial disease. (12 Dec 1998) |