[ op-er-uh-tawr-ee, -tohr-ee ]
/ ˈɒp ər əˌtɔr i, -ˌtoʊr i /

noun, plural op·er·a·to·ries.

a room or other area with special equipment and facilities, as for dental surgery, scientific experiments, or the like.


Origin of operatory

1645–55; operate + -ory1, -ory2; compare Late Latin operātōrius working, acting
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019