obturation

Etymology
From  : compare 🇨🇬.

Noun

 * 1) The act of stopping up, or closing, an opening.
 * 2)  The process of a bullet expanding under pressure to fit the bore of the firearm, or a cartridge case expanding under pressure to seal the chamber.
 * 1)  The process of a bullet expanding under pressure to fit the bore of the firearm, or a cartridge case expanding under pressure to seal the chamber.
 * 1)  The process of a bullet expanding under pressure to fit the bore of the firearm, or a cartridge case expanding under pressure to seal the chamber.

Noun

 * 1) sealing; closing up
 * 2) blockage
 * 3) a dental filling