obturation

From Latin obturare (“to stop up”): compare French obturation.

obturation (countable and uncountable, plural obturations)

1. The act of stopping up, or closing, an opening.
   • Bishop Hall

     Deaf by an outward obturation.

2. (firearms) 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.

• obturate
• obturative

• Audio

  (file)

obturation f (plural obturations)

1. sealing; closing up
2. blockage
3. a dental filling

• “obturation” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).