OLIGOCENE EPOCH as NOUN

1. Meaning
   • from 40 million to 25 million years ago
   • appearance of sabertoothed cats
   Synonym(s)
   • Oligocene (what does Oligocene mean?)
   Hypernyms(s) Oligocene epoch is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • epoch (what does epoch mean?)