WordReference Random House Unabridged Dictionary of American English © 2026
ep•u•ra•tion
(ep′yə rā′shən),USA pronunciation n.
- Government, World Historya purification or purge, as of government officials considered disloyal or treacherous.
- French, equivalent. to épur(er) to purify (see e-, pure) + -ation -ation
- 1790–1800