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Dive Adventures Scuba Glossary is for scuba divers and anyone else interested in scuba diving terminology. To find the scuba glossary term that you are looking for click on the letters below to display the scuba glossary terms that begin with that letter. If you feel that we have missed a term from our scuba glossary or would like a term added to our scuba glossary please contact us so that we can add that term to our scuba glossary. Dive Adventures thanks you for visiting our scuba glossary and helping us to make it better for other scuba divers and those interested in scuba diving terminology Optionally you may select "All Terms" to display the entire list of terms from our scuba glossary database.
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O
Octopus Regulator
An alternate second stage air source used by a diver's buddy in an out-of-air situation, or reserve 2nd stage regulator.
OEA
Oxygen enriched air - synonym for nitrox.
Open circuit scuba
Apparatus used in recreational diving. Exhaled air is expelled into the water as bubbles, no part is re-breathed by the diver.
Open-Water Diving
The recreational diving done in an environment other than a swimming pool but with no overhead obstacles; examples include lakes, ponds, rivers, oceans, quarries.
Oxygen
Often seen as using the chemistry abbreviation 02, gas vital for all life on this planet; makes up about 21% of the air by volume.
Oxygen Therapy
Administration of any gas, for medical purposes, that contains more than 21% oxygen.
Oxygen Toxicity
Damage or injury from inhaling too much oxygen; can arise from either too high an oxygen concentration or oxygen pressure. One of the most dramatic manifestations of oxygen toxicity while diving can be seizure.
Oxygen Window
Difference between total gas pressures in arterial and venous blood; exist because oxygen is partly metabolized by the tissues, so venous oxygen pressure is lower than arterial oxygen pressure.

There are 8 scuba glossary terms listed.

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Modified 12/04/2014