manlockn.
/ˈmanlɒk/, U.S. /ˈmænˌlɑk/ A type of airlock enabling passage for people between two chambers, etc., kept at different air pressures, or between a pressurized chamber and a vacuum.
ΘΚΠ
the world > matter > gas > air > [noun] > air-pressure > chamber between atmospheric and other
air lock1840
lock1840
recompression chamber1907
recompression lock1911
decompression chamber1932
manlock1940
1940 Chambers's Techn. Dict. 524/2 Man lock, an air-lock enabling workmen to pass into, and out of, spaces filled with compressed air.
1969 M. R. Sharpe Living in Space iv. 89 Entrance to the chamber is through a 40-ft. hinged door for spacecraft and four manlocks, two at ground level and two at upper levels.
1990 R. L. Forward Rocheworld 24 Winthrop went to the featureless door on the right side, palmed a panel, and walked into a man-lock.
This is a new entry (OED Third Edition, September 2000; most recently modified version published online March 2022).
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