Decompression | Time spent at a decompression stop or range |
| before surfacing, to allow absorbed nitrogen |
| to escape naturally from tissues. |
Decompression range | On a decompression stop dive the depth |
| range, between the floor and ceiling, within |
| which a diver must stop for some time during |
| ascent. |
Decompression illness | Any of a variety of maladies resulting either |
| directly or indirectly from the formation of |
| nitrogen bubbles in tissues or body fluids, as |
| a result of inadequately controlled decom- |
| pression. Commonly called “bends” or “DCI”. |
Dive series | A group of repetitive dives between which |
| the dive computer indicates some nitrogen |
| loading is present. When nitrogen loading |
| reaches zero the dive computer deactivates. |
Dive time | Elapsed time between leaving the surface to |
| descend, and returning to the surface at the |
| end of a dive. |
DP | Delta P, describing the Cylinder Pressure |
| drop during the dive; difference in cylinder |
| pressure between beginning and end of dive. |
EAD | Abbreviation for equivalent air depth. |
EAN | Abbreviation for enriched air nitrox. |
Enriched Air Nitrox | Also called Nitrox or Enriched Air = EANx. |
| Air that has some oxygen added. Standard |
| mixes are EAN32 (NOAA Nitrox I = NN I) |
| and EAN36 (NOAA Nitrox II = NN II). |
Equivalent Air Depth | Nitrogen partial pressure equivalent table. |
Floor | The deepest depth during a decompression |
| stop dive at which decompression takes |
| place. |
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