ˈäbt(y)əˌrāt transitive verb
( -ed/-ing/-s )
Etymology: Latin obturatus, past participle of obturare to stop up, from ob- toward, over + -turare (akin to tumēre to swell) — more at ob- , thumb
: obstruct , close ; especially : to stop (a gun breech) so as to prevent the escape of gas in firing
• ob·tu·ra·tion ˌ ̷ ̷ ̷ ̷ˈrāshən noun -s