Main Entry: mas·sa·sau·ga

Pronunciation: \ˌmas-ə-ˈsȯg-ə\

Function: noun

: a medium-sized rattlesnake of the genus Sistrurus (S. catenatus) that has nine large scales on the head, grows to a length of about 18 to 39 inches (46 to 100 centimeters), and is distributed from southern Ontario across the central United States to northeastern New Mexico and southeastern Arizona