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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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E
EAN
Enriched Air Nitrox. A N2/O2 (nitrogen/oxygen) breathing gas containing more oxygen (typically 32 or 36 percent) and less nitrogen than plain air. Used by recreational divers to increase either bottom time or safety margin by decreasing the amount of nitrogen absorbed. Requires predive testing of gas mixture and adherence to strict depth restrictions.
Ebb Current
A movement of tidal current away from shore or down a tidal stream; tide that is flowing out or causing a lower water level.
ECCR
Electronic closed circuit re-breather. Sometime ECCCR for electronically controlled closed circuit re-breather.
Eddy
A circular movement of water, in a comparatively limited area, formed on the side of a main current; may be created at a point where the mainstream passes a projection or meets an opposite current.
Eddy current test
Method of non-destructive testing using electromagnetic induction to detect flaws in conductive materials. It is used to detect cracks in parallel neck threads of aluminum cylinders. Also called Visual Plus inspection. Required for cylinders of AA6351 alloy.
E-L algorithm
Exponential-Linear algorithm of 2008 US Navy tables, assumes exponential in gassing and a combination of linear and exponential outgassing rates.
Electro-galvanic fuel cell
An electrical device used to measure the concentration of oxygen gas in diving equipment.
Equalization
The act of forcing air into an open space to offset increasing water pressure.
Eustachian tube
A short tube connecting the back of the nose to the middle ear. If clogged, by mucus, equalization is next to impossible.
Exposure protection
Garment worn to prevent decreases in core body temperature and abrasions. Protection can range from thin body suits to heavy dry suits.

There are 10 scuba glossary terms listed.

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Modified 12/04/2014