Obturation

In the field of firearms and airguns, obturation denotes necessary barrel blockage or fitment by a deformed soft projectile (obturation in general is closing up an opening). A bullet or pellet, made of soft material and often with a concave base, will flare under the heat and pressure of firing, filling the bore and engaging the barrel`s rifling.....
Found on http://en.wikipedia.org/wiki/Obturation

Obturation

• (n.) The act of stopping up, or closing, an opening.
Found on http://thinkexist.com/dictionary/meaning/obturation/

obturation

(ob″tә-ra´shәn) obstruction. canal obturation filling of a root canal completely and densely with a nonirritating hermetic sealing agent.
Found on http://www.encyclo.co.uk/local/21001

Obturation

Ob`tu·ra'tion noun [ Latin obturare to stop up: confer French obturation .] The act of stopping up, or closing, an opening. 'Deaf by an outward obturation .' Bp. Hall.
Found on http://www.encyclo.co.uk/webster/O/7

obturation

Obstruction or occlusion. ... Origin: see obturator ... Intermittent self-obturation, passage of a blunt object in a lumen or meatus to occlude it or to dilate it. ... (05 Mar 2000) ...
Found on http://www.encyclo.co.uk/local/20973

obturation

Type: Term Pronunciation: ob′tū-rā′shŭn Definitions: 1. Obstruction or occlusion.
Found on http://www.medilexicon.com/medicaldictionary.php?t=62074
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