A trap (especially one made from a loop of wire, string, or leather).
User Defined Definitions
"a small drum with two heads and a snare stretched across the lower head"
"a surgical instrument consisting of wire hoop that can be drawn tight around the base of polyps or small tumors to sever them; used especially in body cavities"
"strings stretched across the lower head of a snare drum; they make a rattling sound when the drum is hit"
"a trap for birds or small mammals; often has a slip noose"