Air lock

civil engineering. an airtight chamber permitting p-ssage to or from a sp-ce, as in a caisson, in which the air is kept under pressure.
the impedance in the functioning of a pump or a system of piping caused by the presence of an air bubble; vapor lock.
to place in or confine to an air lock:
to air-lock divers before they descend.
historical examples

it takes exactly eight turns on this valve to bleed the air out of the air lock where your two buddies are.
on the trail of the sp-ce pirates carey rockwell

pendray’s mind was numb as he opened the air lock of the small craft.
the measure of a man randall garrett

tallis was just stepping into the commander’s cabin as the two men entered the air lock.
the highest treason randall garrett

miss crannon was waiting for him at the air lock, and mike the angel was standing by.
unwise child gordon randall garrett

as they walked across the steel surface, back to the air lock, tom stuck out his hand.
stand by for mars! carey rockwell

pop reached the dust-heap which was his shack and went in the air lock.
scrimshaw william fitzgerald jenkins

the green light came on, and the door of the air lock slid open.
anchorite randall garrett

there was no need for it here; every man there knew how to handle himself in an air lock.
anchorite randall garrett

a plumie in a pressure suit just came out of their air lock.
the aliens murray leinster

tremont tried to grab at the edge of the air lock, but it was gone.
satellite system horace brown fyfe