noun. any of many extinct cats of the Old and New Worlds having long swordlike upper canine teeth; from the Oligocene through the Pleistocene.
1. Coordinating conjunction These smaller fish, along with squid, cuttlefish and krill, are eaten by mesopelagic predators like the blobfish, snake mackerel, sabertooth fish, longnose lancetfish and opah. 2. Adjective Dubbed one of the best playgrounds in the OC by OC Family in 2008, little adventurers can explore sabertooth footprints and whale fossils before taking a break in a safari Jeep.