What is "kissing bug"

Kissing bug \Kiss"ing bug`\ (Zo["o]l.) Any one of several species of blood-sucking, venomous Hemiptera that sometimes bite the lip or other parts of the human body, causing painful sores, as the cone-nose ( Conorhinus sanguisuga). [U. S.]

n. Any of a number of haematophagous bugs belonging to the subfamily Triatominae that feed on the blood of vertebrates, including humans, and which are known for spreading (l en Chagas' disease).

n. large bloodsucking bug [syn: conenose, cone-nosed bug, conenose bug, big bedbug]