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saturation diving

noun

a method of prolonged diving, using an underwater habitat to allow divers to remain in the high-pressure environment of the ocean depths long enough for their body tissues to become saturated with the inert components of the pressurized gas mixture that they breathe: when this condition is reached, the amount of time required for decompression remains the same, whether the dive lasts a day, a week, or a month.

Origin of saturation diving

First recorded in 1965–70
Related formssaturation dive, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for saturation diving

saturation diving

noun

a method of diving in which divers live in a complex of decompression chambers for up to 28 days, going to work via a diving bell, and only decompressing at the end of the period. Helium is substituted for nitrogen in the air supply to avoid the narcotic effects of nitrogen
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012