man lock

man lock

n
(Civil Engineering) civil engineering an airlock that allows workmen to pass in and out of spaces with differing air pressures, esp one providing access to and from a tunnel, shaft, or caisson in which the air is compressed
References in periodicals archive ?
Steve, Isle of Man Lock your doors Big Mac Whilst doing my ironing on Sunday and watching ATR, I had the urge, armed with my horse clippers, to sneak into McCririck's bedroom one night, and shave off his very long sideburns.
After enduring a barrage of obscenities, the man locks his new pet in the garden shed.
The Belfast man locks horns with Selby in a repeat of last season's quarter-final clash at the Wembley Arena.