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Pronunciation: the'a-ter


  1. A large room for lectures and demonstrations; sometimes applied to an operating room equipped for observation by people other than the surgical team.
  2. Any operating room or suite of such rooms.

[G. theatron, a place for seeing, theater, fr. theomai, to look at]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.