·add. ·noun A camera shutter.
II. Obturator ·noun That which closes or stops an Opening.
III. Obturator ·noun An apparatus designed to close an unnatural opening, as a fissure of the palate.
IV. Obturator ·add. ·noun Any device for preventing the escape of gas through the breech mechanism of a breech-loading gun; a gas check.
V. Obturator ·adj Serving as an obturator; closing an opening; pertaining to, or in the region of, the obturator foramen; as, the obturator nerve.