The Collaborative International Dictionary of English v.0.48:
Holocene \Holocene\ n. 1. The geological period comprising approximately the last 10,000 years. Syn: Holocene epoch, Recent epoch. [WordNet 1.5]WordNet (r) 3.0 (2006):
Holocene n 1: approximately the last 10,000 years [syn: Holocene, Holocene epoch, Recent, Recent epoch]