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Pronunciation: ob'tu-ra'tor


  1. Any structure that occludes an opening.
  2. Denoting the obturator foramen, the obturator membrane, or any of several parts in relation to this foramen.
  3. A prosthesis used to close an opening in the hard palate, usually in a cleft palate.
  4. The stylus or removable plug used during the insertion of many tubular instruments.

[L. obturo, pp. -atus, to occlude or stop up]

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