hog·nose snake (hôg'nōz', hŏg'-) n. Any of several thick-bodied, nonvenomous North American snakes of the genus Heterodon having an upturned snout. Also called puff adder.
puff adder n.
A venomous African viper (Bitis arietans) having crescent-shaped yellowish markings.
Main Entry: puff adder Function: noun : a thick-bodied exceedingly venomous widely distributed African viper (Bitis arietans) that inflates its body and hissesloudly when disturbed; also: a similar smaller snake (B. inornata) that occurs only in southern Africa