Obturator

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Obturator \Ob"tu*ra`tor\, n. [NL., fr. L. obturare to stop up:
     cf. F. obturateur.]
     1. That which closes or stops an opening.
        [1913 Webster]
  
     2. (Surg.) An apparatus designed to close an unnatural


        opening, as a fissure of the palate.
        [1913 Webster]
  
     3. (Ordnance) Any device for preventing the escape of gas
        through the breech mechanism of a breech-loading gun; a
        gas check.
        [Webster 1913 Suppl.]
  
     4. (Photog.) A camera shutter.
        [Webster 1913 Suppl.]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Obturator \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.
     [1913 Webster]
  
     {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.
        [1913 Webster]

From WordNet (r) 2.0 [wn]:

  obturator
       n : a prosthesis used to close an opening (as to close an
           opening of the hard palate in cases of cleft palate)