| williams syndrome | <syndrome> Supravalvular aortic stenosis, mental retardation, elfin facies, and transient hypercalcaemia in infancy. It affects both sexes, with onset at birth or early infancy. Its aetiology is unknown. The primary disturbance begins in utero. There is a familial tendency but no genetic basis is apparent. It is possibly an abnormality of vitamin d metabolism. Its prognosis depends upon the degree of malformation and surgical correction. (12 Dec 1998) |
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| Williams' stain | <technique> A stain for Negri bodies which utilises picric acid, fuchsin, and methylene blue; Negri bodies are magenta, granules and nerve cells blue, and erythrocytes yellowish. (05 Mar 2000) |
| Williams' syndrome | <syndrome> Transient or persistent unilateral partial lower facial paresis accompanying some congenital heart disease. A group of syndromes characterised by congenital cardiovascular, bone, soft tissue, and facial abnormalities. Examples include Rubinstein-Taybi syndrome, Noonan's syndrome and Williams' syndrome. Synonym: Williams' syndrome. (05 Mar 2000) |
| Williams, Anna | <person> U.S. Bacteriologist, 1863-1955. See: Williams' stain, Park-Williams bacillus, Park-Williams fixative. (05 Mar 2000) |
| Williams, J | <person> 20th century New Zealand cardiologist. See: Williams syndrome. (05 Mar 2000) |
| Williams-Beurer syndrome | idiopathic hypercalcaemia of infants |
| Williamson, Carl | <person> U.S. Surgeon, 1896-1952. See: Mann-Williamson operation, Mann-Williamson ulcer. (05 Mar 2000) |
| willing | 1. Free to do or to grant; having the mind inclined; not opposed in mind; not choosing to refuse; disposed; not averse; desirous; consenting; complying; ready. "Felix, willing to show the Jews a pleasure, left Paul bound." (Acts xxiv. 27) "With wearied wings and willing feet." (Milton) "[Fruit] shaken in August from the willing boughs." (Bryant) 2. Received of choice, or without reluctance; submitted to voluntarily; chosen; desired. "[They] are held, with his melodious harmony, In willing chains and sweet captivity." (Milton) 3. Spontaneous; self-moved. "No spouts of blood run willing from a tree." (Dryden) Origin: From Will. Source: Websters Dictionary (01 Mar 1998) |
| Willis' centrum nervosum | The largest and highest group of prevertebral sympathetic ganglia, located on the superior part of the abdominal aorta, on either side of the origin of the coeliac artery; contains sympathetic neurons whose unmyelinated postganglionic axons innervate the stomach, liver, gallbladder, spleen, kidney, small intestine, and ascending and transverse colon. H Synonym: ganglia coeliaca, semilunar ganglion, solar ganglia, Vieussens' ganglia, Willis' centrum nervosum. (05 Mar 2000) |
| Willis' cords | Several fibrous cord's crossing the superior sagittal sinus. Synonym: chordae willisii. (05 Mar 2000) |
| Willis' pancreas | A portion of the head of the pancreas that hooks around posterior to the superior mesenteric vessels, sometimes into the "nutcracker" formed by the superior mesenteric artery and abdominal aorta. Synonym: processus uncinatus pancreatis, lesser pancreas, pancreas minus, small pancreas, uncinate pancreas, unciform pancreas, Willis' pancreas, Winslow's pancreas. (05 Mar 2000) |
| Willis' paracusis | <otolaryngology> The apparent increase in auditory acuity of a deaf person to conversation in noisy surroundings due to his companion unconsciously raising his voice. Synonym: Willis' paracusis. (05 Mar 2000) |
| Willis' pouch | An obsolete term for lesser omentum (05 Mar 2000) |
| Willis, Thomas | <person> English physician, 1621-1675. See: Willis' centrum nervosum, Willis' cords, Willis' pancreas, Willis' paracusis, Willis' pouch, circle of Willis, accessorius willisii, chordae willisii. (05 Mar 2000) |
| Williston's law | As the vertebrate scale is ascended, the number of bones in the skull is reduced. (05 Mar 2000) |