Eocene
adj. Geol. (of or relating to the second principal subdivision of the Tertiary–used commonly of the epoch following the Paleocene and preceding the Oligocene but sometimes of all the Cenozoic era preceding the Miocene) इओसीन– n. १ (Eocene epoch) इओसीन कालखंड (पु.) २ (the series deposited during the Eocene epoch) इओसीन श्रेणी (स्त्री.)