Deathwatch beetle. The deathwatch beetle, Xestobium rufovillosum, is a woodboring beetle. The adult beetle is 7 millimetres (0.28 in) long, while the xylophagous larvae are up to 11 mm (0.43 in) long.
Noun. 1. stent-a slender tube inserted inside a tubular body part (as a blood vessel) to provide support during and after surgical anastomosis. tube, tubing-conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases. Translations.
A. A. A. Stents are small expandable tubes used to treat narrowed or weakened arteries in the body. In patients with coronary heart disease, caused by the buildup of plaque, stents are used to open narrowed arteries and help reduce symptoms such as chest pain (angina) or to help treat a heart attack.