Smilodon
noun
Smi·lo·don
ˈsmīləˌdän
: a genus of saber-toothed cats (subfamily Machairodontinae) of the Pliocene and Pleistocene usually attaining the size of a tiger or lion and having upper canines that extend 7 inches (18 centimeters) or more below the lower jaw and a gape of usually greater than 90 degrees
Word History
Etymology
New Latin, from Greek smilē woodcarving knife + New Latin -odon