| LMI | leukocyte migration inhibition |
|---|---|
| LMIF | leukocyte migration inhibition factor |
| LMT | left mentotransverse [fetal position]; leukocyte migration technique |
| MEF | maximal expiratory flow; middle ear fluid; midexpiratory flow; migration enhancement factor; mouse e... |
| MIF | macrophage inhibitory factor; melanocyte[-stimulating hormone]-inhibiting factor; maximum inspirator... |
| relative refractory period | The period between the effective refractory period and the end of the refractory period; fibres then respond only to high intensity stimuli and the impulses conduct more slowly than normally. (05 Mar 2000) |
|---|---|
| relative risk | <epidemiology> The proportion of diseased people amongst those exposed to the relevant risk factor divided by the proportion of diseased people amongst those not exposed to the risk factor. This should be used in those cohort studies where those with and without disease are followed to observe which individuals become diseased. (05 Dec 1998) |
| relative scotoma | A scotoma in which there is visual depression but not complete loss of light perception. (05 Mar 2000) |
| relative sensitivity | The sensitivity of a medical screening test as determined by comparison with the same type of test; e.g., sensitivity of a new serological test relative to sensitivity of an established serological test. (05 Mar 2000) |
| relative specificity | The specificity of a medical screening test as determined by comparison with the same type of test (e.g., specificity of a new serological test relative to specificity of an established serological test). (05 Mar 2000) |
| relative value scales | Coded listings of physician or other professional services using units that indicate the relative value of the various services they perform. They take into account time, skill, and overhead cost required for each service, but generally do not consider the relative cost-effectiveness. Appropriate conversion factors can be used to translate the abstract units of the relative value scales into dollar fees for each service based on work expended, practice costs, and training costs. (12 Dec 1998) |
| relative viscosity | The ratio of the viscosity of a solution or dispersion to the viscosity of the solvent or continuous phase. (05 Mar 2000) |
| working distance free | <microscopy> The distance between the front lens of the objective and the coverslip (or uncovered object) when the lens is focused on the specimen. (05 Aug 1998) |
| pupillary distance | The distance between the centre of each pupil; the major reference points in measuring for fitting of spectacle frames and lenses. (05 Mar 2000) |
| hyperfocal distance | <microscopy> The nearest distance, h, at which a camera lens focuses the far distance (infinity). This gives the maximum depth of field, the nearest distance in focus is h/2. (05 Aug 1998) |
| small interarch distance | A small distance between the maxillary and mandibular arches. Synonym: close bite. (05 Mar 2000) |
| social distance | The degree of closeness or acceptance an individual or group feels toward another individual or group. (12 Dec 1998) |
| sociometric distance | Some measurable degree of mutual or social perception, acceptance, and understanding; hypothetically, greater sociometric distance is associated with more inaccuracy in evaluating a relationship (e.g., it is easier to understand and deal with a native than a foreigner). (05 Mar 2000) |
| distance | 1. The space between two objects; the length of a line, especially the shortest line joining two points or things that are separate; measure of separation in place. "Every particle attracts every other with a force . . . Inversely proportioned to the square of the distance." (Sir I. Newton) 2. Remoteness of place; a remote place. "Easily managed from a distance." (W. Irving) "'T is distance lends enchantment to the view." (T. Campbell) "[He] waits at distance till he hears from Cato." (Addison) 3. A space marked out in the last part of a race course. "The horse that ran the whole field out of distance." (L'Estrange) In trotting matches under the rules of the American Association, the distance varies with the conditions of the race, being 80 yards in races of mile heaths, best two in three, and 150 yards in races of two-mile heats. at that distance from the winning post in placed the distance post. If any horse has not reached this distance post before the first horse in that heat has reached the winning post, such horse is distanced, and disqualified for cunning again during that race. 4. Relative space, between troops in ranks, measured from front to rear; contrasted with interval, which is measured from right to left. "Distance between companies in close column is twelve yards." 5. Space between two antagonists in fencing. 6. The part of a picture which contains the representation of those objects which are the farthest away, especially. In a landscape. In a picture, the Middle distance is the central portion between the foreground and the distance or the extreme distance. In a perspective drawing, the Point of distance is the point where the visual rays meet. 7. Ideal disjunction; discrepancy; contrariety. 8. Length or interval of time; period, past or future, between two eras or events. "Ten years' distance between one and the other." (Prior) "The writings of Euclid at the distance of two thousand years." (Playfair) 9. The remoteness or reserve which respect requires; hence, respect; ceremoniousness. "I hope your modesty Will know what distance to the crown is due." (Dryden) "'T is by respect and distance that authority is upheld." (Atterbury) 10. A withholding of intimacy; alienation; coldness; disagreement; variance; restraint; reserve. "Setting them [factions] at distance, or at least distrust amongst themselves." (Bacon) "On the part of Heaven, Now alienated, distance and distaste." (Milton) 11. Remoteness in succession or relation; as, the distance between a descendant and his ancestor. 12. The interval between two notes; as, the distance of a fourth or seventh. Angular distance, the distance made at the eye by lines drawn from the eye to two objects. Lunar distance. See Lunar. <astronomy> North polar distance, the arc on the heavens from a heavenly body to the zenith of the observer. It is the complement of the altitude. To keep one's distance, to stand aloof; to refrain from familiarity. "If a man makes keep my distance, the comfort is he keeps his at the same time." (Swift) Origin: F. Distance, L. Distantia. Source: Websters Dictionary (01 Mar 1998) |
| distance ceptor | A nerve mechanism of one of the organs of special sense whereby the subject is brought into relation with his distant environment. (05 Mar 2000) |