obturator

An organic structure, such as the soft palate, that closes an opening in the body.

A prosthetic device serving to close an opening in the body.

That which closes or stops up an entrance, cavity, or the like.

In photography, the instantaneous shutter of a camera.

Anything used to close the orifice of a hollow instrument, such as a speculum or catheter, during its introduction.

Serving as an obturator; closing an opening; pertaining to, or in the region of, the obturator foramen.

an opening situated between the public and ischial parts of the innominate bone and closed by the obturator membrane; the thyroid foramen.

That which closes or stops an opening.

An apparatus designed to close an unnatural opening, as a fissure of the palate.

Any device for preventing the escape of gas through the breech mechanism of a breech-loading gun; a gas check.