1) Genus heterodon 2) Reptile genus 
Heterodon is a genus of harmless colubrid snakes endemic to North America. They are stout with upturned snouts and are perhaps best known for their characteristic threat displays. Three species are currently recognized. Members of the genus are commonly known as hog-nosed snakes, North American hog-nosed snakes, and sometimes puff adders (though t...
[n] - a genus of small colubrid snakes containing the North American hognose snakes
genus Heterodon noun a genus of small colubrid snakes containing the North American hognose snakes