| Waters, Charles Alexander | <person> U.S. Radiologist, 1888-1961. See: Waters' view radiograph. (05 Mar 2000) |
|---|---|
| Waters, Edward | <person> U.S. Obstetrician and gynecologist, *1898. See: Waters' operation. (05 Mar 2000) |
| watershed | 1. The whole region or extent of country which contributes to the supply of a river or lake. 2. The line of division between two adjacent rivers or lakes with respect to the flow of water by natural channels into them; the natural boundary of a basin. Origin: Cf. G. Wasserscheide; wasser water + scheide a place where two things separate, fr. Scheiden to separate. Source: Websters Dictionary (01 Mar 1998) |
| watershed infarction | Cortical infarction in an area where the distribution of major cerebral arteries meet or overlap. (05 Mar 2000) |
| watershoot | 1. A sprig or shoot from the root or stock of a tree. 2. That which serves to guard from falling water; a drip or dripstone. 3. A trough for discharging water. Source: Websters Dictionary (01 Mar 1998) |
| Waterston operation | A surgically created anastomosis between the pulmonary artery and the ascending aorta to palliate adult tetralogy of Fallot. (05 Mar 2000) |
| Waterston shunt | Creation of a narrow (about 3 mm) opening between the ascending aorta and the subjacent right pulmonary artery to increase pulmonary circulation in cyanotic heart disease with decreased pulmonary flow. (05 Mar 2000) |
| Waterston, David | <person> British thoracic and paediatric surgeon, *1910. See: Waterston operation, Waterston shunt. (05 Mar 2000) |
| waterweed | <botany> See Anacharis. Source: Websters Dictionary (01 Mar 1998) |
| waterwheel sound | Sound made by cardiac motion inducing splashes in the presence of fluid and air within the pericardial sac. (05 Mar 2000) |
| waterwort | <botany> Any plant of the natural order Elatineae, consisting of two genera (Elatine, and Bergia), mostly small annual herbs growing in the edges of ponds. Some have a peppery or acrid taste. Source: Websters Dictionary (01 Mar 1998) |
| watery eye | 1. <medicine> The watery eye; a disease in which the tears accumulate in the eye, and trickle over the cheek. 2. The emphatic repetition of a word or phrase, at the end of several sentences or stanzas. Origin: L, fr. Gr, fr. To bring to or upon; + to bring. Source: Websters Dictionary (01 Mar 1998) |
| Watson, C | <person> U.S. Physician, born 1901. Professor and Chairman of Medicine at the University of Minnesota from 1942 to 1966. He made major contributions in the study of liver disease and porphyria. See: Watson-Schwartz test. (05 Mar 2000) |
| Watson, James | <person> U.S. Geneticist and Nobel laureate, *1928. See: Watson-Crick helix. (05 Mar 2000) |
| Watson, James Dewey | <person> An American biochemist and alumnus of Indiana University born in 1928 who was one of three people to win the Nobel Prize in 1962 for the category of physiology or medicine. He and Francis Crick, an English biologist, discovered the double-stranded helix structure of the DNA molecule and built the Watson-Crick model of this structure. Their work was heavily based on the work of Maurice Wilkins (who also won the Nobel Prize in physiology or medicine in 1962) and Rosalind Franklin (who died before the 1962 Nobel Prize winners were selected). The model they postulated is the accepted model used today. Lived: 1928- (13 Nov 1997) |