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.
In medicine, a stent is a tube or other device placed in the body to create a passage between two hollow spaces, and stenting is the placement of a stent.
A stenosis (/stÉËnoÊsÉ¨s/ ; plural: stenoses, /stÉËnoÊËsiËz/) (from Ancient Greek ÏÏÎ­Î½ÏÏÎ¹Ï, narrowing) is an abnormal narrowing in a blood vessel or other tubular organ or structure. It is also sometimes called a stricture (as in urethral stricture).tricture as a term is usually used when narrowing is caused by contraction of smooth muscle (e.g., achalasia, prinzmetal angina); stenosis is usually used when narrowing is caused by lesion that reduces the space of lumen (e.g., atherosclerosis).