| 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) |