| carcinoma 256, walker | A transplantable carcinoma of the rat that originally appeared spontaneously in the mammary gland of a pregnant albino rat, and which now resembles a carcinoma in young transplants and a sarcoma in older transplants. (12 Dec 1998) |
|---|---|
| Rideal-Walker coefficient | A figure expressing the disinfecting power of any substance; it is obtained by dividing the figure indicating the degree of dilution of the disinfectant that kills a microorganism in a given time by that indicating the degree of dilution of phenol which kills the organism in the same space of time under similar conditions. Synonym: hygienic laboratory coefficient, phenol coefficient. (05 Mar 2000) |
| Rideal-Walker method | A figure expressing the disinfecting power of any substance; it is obtained by dividing the figure indicating the degree of dilution of the disinfectant that kills a microorganism in a given time by that indicating the degree of dilution of phenol which kills the organism in the same space of time under similar conditions. Synonym: hygienic laboratory coefficient, phenol coefficient. (05 Mar 2000) |
| walker | 1. One who walks; a pedestrian. 2. That with which one walks; a foot. "Lame Mulciber, his walkers quite misgrown." (Chapman) 3. A forest officer appointed to walk over a certain space for inspection; a forester. 4. [AS. Wealcere. See Walk, 3] A fuller of cloth. "She cursed the weaver and the walker The cloth that had wrought." (Percy's Reliques) 5. <zoology> Any ambulatorial orthopterous insect, as a stick insect. Source: Websters Dictionary (01 Mar 1998) |
| Walker, A Earl | <person> U.S. Neurologist, *1907. See: Walker tractotomy, Dandy-Walker syndrome. (05 Mar 2000) |
| Walker carcinoma | <tumour> A transplantable carcinosarcoma of the rat that originally appeared spontaneously in the mammary gland of a pregnant albino rat, and which now resembles a carcinoma in young transplants and a sarcoma in older transplants. Synonym: Walker carcinoma. (05 Mar 2000) |
| Walker carcinosarcoma | <tumour> A transplantable carcinosarcoma of the rat that originally appeared spontaneously in the mammary gland of a pregnant albino rat, and which now resembles a carcinoma in young transplants and a sarcoma in older transplants. Synonym: Walker carcinoma. (05 Mar 2000) |
| Walker, J | <person> Ainslie, English chemist, 1868-1930. See: Rideal-Walker coefficient, Rideal-Walker method. (05 Mar 2000) |
| Walker, James | <person> British gynecologist, *1916. See: Walker's chart. (05 Mar 2000) |
| Walker's chart | A system of plotting the relative foetal and placental sizes. (05 Mar 2000) |
| Walker tractotomy | A mesencephalic spinothalamic tractotomy. (05 Mar 2000) |
| Dandy-Walker syndrome | <syndrome> Obstruction of foramina of Luschka and Magendie, enlarged 4th ventricle, hypoplastic vermis and cerebellum associated with: agenesis of corpus callosum, encephalocele (12 Dec 1998) |
| appliance | <dentistry> Anything the orthodontist attaches to your teeth to move your teeth or to change the shape of your jaw (05 Mar 2000) |
| ribbon arch appliance | An appliance consisting of a rectangular wire inserted into a specially designed bracket attached to the labial and buccal surfaces of the teeth. (05 Mar 2000) |
| Roger-Anderson pin fixation appliance | An appliance used in extraoral fixation of mandibular fractures and prognathic corrections in which pins placed in the bone segments are joined by metal connecting rods. See: external pin fixation. (05 Mar 2000) |