Obturator

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Obturator

(n.) That which closes or stops an opening.
(n.) An apparatus designed to close an unnatural opening, as a fissure of the palate.
(a.) Serving as an obturator; closing an opening; pertaining to, or in the region of, the obturator foramen; as, the obturator nerve.
(n.) Any device for preventing the escape of gas through the breech mechanism of a breech-loading gun; a gas check.
(n.) A camera shutter.