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Noun, pl. obturators

1. (Surgery) An object used to obstruct a hole, such as a fissure of the palate. (; an apparatus designed to close an unnatural opening, as a fissure of the palate. (

2. A prosthesis used to close an opening (as to close an opening of the hard palate in cases of cleft palate. (

Word origin: From Latin obtūrō “to stop, block up”.

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