Definitions for obturateˈɒb təˌreɪt, -tyə-

This page provides all possible meanings and translations of the word obturate

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  1. obstruct, obturate, impede, occlude, jam, block, close up(verb)

    block passage through

    "obstruct the path"

Freebase

  1. Obturation

    In the field of firearms and airguns, obturation denotes necessary barrel blockage or fitment by a deformed soft projectile. 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. The mechanism by which an undersized soft-metal projectile enlarges to fill the barrel is, for hollow-base bullets, expansion from gas pressure within the base cavity and, for solid-base bullets, "upsetting"—the combined shortening and thickening that occurs when a malleable metal object is struck forcibly at one end. For shotgun shells which have multiple pellets much smaller than the barrel bore, obturation is achieved by placing a plastic wad or biodegradable card of the same diameter as the barrel between the propellant powder and the pellets.

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"obturate." Definitions.net. STANDS4 LLC, 2015. Web. 28 Mar. 2015. <http://www.definitions.net/definition/obturate>.

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