Webster’s Revised Unabridged Dictionary · 1913
Obturator
Ob′tu·ra′tor (ŏb′tū·rā′tẽr), n. [NL., fr. L. obturare to stop up: cf.F. obturateur.] 1. That which closes or stops an opening.
2. (Surg.) An apparatus designed to close an unnatural opening, as a fissure of the palate.
Ob′tu·ra′tor, a. (Anat.) Serving as an obturator; closing an opening; pertaining to, or in the region of, the obturator foramen; as, the obturator nerve.
Obturator foramen (Anat.), an opening situated between the public and ischial parts of the innominate bone and closed by the obturator membrane; the thyroid foramen.