- Vieussens ansa etc.
- Vieus·sens ansa, etc. (vy-sahґ) [Raymond de Vieussens, French anatomist, 1641–1715] see ansa subclavia, cavum septi pellucidi, foramina venarum minimarum, limbus fossae ovalis, and venae ventriculi dextri anteriores.
Medical dictionary. 2011.