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.
an abnormal condition characterized by the constriction or narrowing of an opening or passageway in a body structure. The term is commonly used to describe heart valve and vessel abnormalities as well as narrowing of joint spaces, as in cervical stenosis. Kinds of stenosis include aortic stenosis and pyloric stenosis.