Obturate
Pronunciation : Ob"tu*rate
Part of Speech : v.
Definition : Defn: To stop or close, as an opening; specif., (Ordnance),
Defn: to stop (a gun breech) so as to prevent the escape of gas in firing.
t. [imp. & p. p. Obturated; p. pr. & vb. n. Obturating.] [L. obturatus; p.p. of obturare.]
Source : Webster's Unabridged Dictionary, 1913