different between obturation vs obturate

English

Etymology

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

Noun

obturation (countable and uncountable, plural obturations)

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

   • 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.

Related terms

• obturate
• obturative

French

Pronunciation

Noun

obturation f (plural obturations)

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

Derived terms

• vitesse d'obturation

Further reading

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

English

Etymology

From Latin obt?r?, obt?r?re.

Verb

obturate (third-person singular simple present obturates, present participle obturating, simple past and past participle obturated)

1. To block up or obstruct.
   1. To stop up (a gun breech) so as to prevent the escape of gas when firing.

See also

• obturation

Anagrams

• tabouret

Latin

Participle

obt?r?te

1. vocative masculine singular of obt?r?tus