Hypertext Webster Gateway: "Obturated"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Obturate \Ob"tu*rate\, v. t. [imp. & p. p. {Obturated}; p. pr. &
vb. n. {Obturating}.] [L. obturatus; p.p. of obturare.]
To stop or close, as an opening; specif., (Ordnance), to stop
(a gun breech) so as to prevent the escape of gas in firing.
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