| run | <marine biology> A group of fish migrating in a river (most often on a spawning migration) that may comprise one or many stocks. (17 Dec 1997) |
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| runaround | Colloquialism for paronychia. (05 Mar 2000) |
| runaway behaviour | A behavioural response manifested by leaving home in order to escape from threatening situations. Children or adolescents leaving home without permission is usually implied. (12 Dec 1998) |
| runaway electrons | <radiobiology> Those electrons in a plasma that gain energy from an applied electrical field at a faster rate than they lose it through collisions with other particles. These electrons tend to run away in energy (not position) from the cooler remainder of the background plasma, because the collision cross-section decreases as the particle's velocity increases, so that the faster the particle goes, the less likely it is to be stopped. See: collision cross-section. (17 Dec 1997) |
| runaway pacemaker | Rapid heart rates over 140/min caused by electronic circuit instability in an implanted pulse generator. (05 Mar 2000) |
| runch | <botany> The wild radish. Source: Websters Dictionary (01 Mar 1998) |
| runcinate | Deeply lobed and with the lobes slanted away from the apex. (09 Oct 1997) |
| Rundle, A | <person> British physician. See: Richards-Rundle syndrome. (05 Mar 2000) |
| Runeberg's formula | A formula for estimating the percentage of albumin in a serous fluid, similar to Reuss' formula except that, instead of 2.8, 2.73 is subtracted in the instance of a transudate, and 2.88 in that of an inflammatory exudate. (05 Mar 2000) |
| Runeberg, Johan | <person> Finnish physician, 1843-1918. See: Runeberg's formula. (05 Mar 2000) |
| rung | 1. A floor timber in a ship. 2. One of the rounds of a ladder. 3. One of the stakes of a cart; a spar; a heavy staff. 4. <machinery> One of the radial handles projecting from the rim of a steering wheel; also, one of the pins or trundles of a lantern wheel. Origin: OE. Ronge, AS. Hrung, a staff, rod, pole; akin to G. Runge a short, thick piece of iron or wood, OD. Ronghe a prop, support, Icel. Rong a rib in a ship, Goth. Hrugga a staff. Source: Websters Dictionary (01 Mar 1998) |
| runner | <plant biology> A slender, prostrate or trailing stem which produces roots and sometimes erect shoots at its nodes. (17 Dec 1997) |
| runner's condition | <orthopaedics> A condition where the knee cap (patella) rubs on the surface of the femur rather than following its normal tracking over the knee joint. This condition is brought about by stress or overuse (for example runners). Running on hills or incline surfaces can exacerbate this problem. Symptoms include knee pain, just under the knee cap after running, progressing to knee pain at rest. Treatment includes rest and stretching exercises for the quadriceps and hamstring muscles. Strengthening the medial (inner) head of the quadriceps (along the inner thigh) will help pull the knee cap medially and correct the problem. (17 Dec 1997) |
| running | 1. Moving or advancing by running. Specifically, of a horse; Having a running gait; not a trotter or pacer. Trained and kept for running races; as, a running horse. 2. Successive; one following the other without break or intervention; said of periods of time; as, to be away two days running; to sow land two years running. 3. Flowing; easy; cursive; as, a running hand. 4. Continuous; keeping along step by step; as, he stated the facts with a running explanation. "A running conquest." "What are art and science if not a running commentary on Nature?" (Hare) 5. <botany> Extending by a slender climbing or trailing stem; as, a running vine. 6. <medicine> Discharging pus; as, a running sore. <medicine> Running block, the title of a book or chapter continued from page to page on the upper margin. Source: Websters Dictionary (01 Mar 1998) |
| running time | The time during which an activity (e.g., chromatography development) occurs. (05 Mar 2000) |
| winter-run fish | <marine biology> Anadromous fish that return to fresh water in autumn or winter, migrate to spawning areas and then spawn in late winter or spring. (09 Oct 1997) |
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| spring-run fish | <marine biology> Anadromous fish that return to fresh water in the spring, migrate to spawning areas and spawn during late summer or early autumn. (04 Mar 1998) |
| nuclear run off assay | <investigation, procedure> Technique for determining which genes are being actively transcribed at a given moment in an experiment by extracting nuclear material and allowing transcription to continue, then analysing the resulting RNAs. (18 Nov 1997) |
| summer-run fish | <marine biology> Anadromous fish that return to fresh water during June through September, migrate inland toward spawning areas, overwinter in the larger rivers, resume migration in early spring to natal springs and then spawn. (19 Jan 1998) |
| odd-year run | Population of fish that returns to spawning grounds in odd-numbered years. (09 Oct 1997) |
| fall-run fish | <marine biology> Anadromous fish that return to fresh water in the fall and spawn during fall or early winter. (09 Oct 1997) |