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 stent is a small, mesh-like device made of metal. When a stent is placed inside of a coronary artery, it acts as a support or scaffold, keeping the vessel open. By keeping the vessel open, the stent helps to improve blood flow to the heart muscle and reduce the pain of angina.